[HN Gopher] More Casio Watch Mods (2017)
       ___________________________________________________________________
        
       More Casio Watch Mods (2017)
        
       Author : susam
       Score  : 339 points
       Date   : 2021-09-21 13:11 UTC (9 hours ago)
        
 (HTM) web link (n-o-d-e.net)
 (TXT) w3m dump (n-o-d-e.net)
        
       | gbrown_ wrote:
       | This is one of the cleanest blog designs I've seen in a while,
       | will certainly be taking some inspiration from it.
        
       | golemiprague wrote:
       | Just wonder, why people need watch? you can see the time
       | everywhere, on the phone, laptop whatever. I have never had a
       | situation where I don't have the time available for me that I
       | have to carry a specific device on my hand just to tell me the
       | time
        
       | jamesbvaughan wrote:
       | I love the F-91W and wore one for years before switching to an
       | Apple Watch. I don't see myself switching back to the Casio, but
       | I do miss it sometimes and wanted to bring as much of it over to
       | the Apple Watch as possible, so I put the Casio band on it [0],
       | but I haven't been able to put together an Apple Watch face that
       | resembles the Casio. Has anyone else tried this and had any luck?
       | 
       | [0] https://jamesbvaughan.com/casio-f91w-apple-watch/
        
         | raju wrote:
         | Yes, please! I wore the Casio F105W for over a decade, and
         | really want someone to create this.
         | 
         | Your strap looks really nice. I might have to see if I can do
         | that with my watch--I have at least 3 F105W lying around right
         | now.
        
       | lifeisstillgood wrote:
       | The crazy part is the colour fixes are not just "hey that's
       | great" but "hey had we done this in 1980 we would have made
       | millions more".
       | 
       | If you have to have a corporate engineering strategy, drop Agile
       | and Lean and try just letting good people try stuff and see what
       | happens.
       | 
       | Once it's working _then_ figure out how to production use and
       | market it. Not figure out what you think the market needs and
       | then crash develop it.
       | 
       | (I may be over egging my pudding)
        
       | isolli wrote:
       | Vostok also has a very active modding community:
       | https://modstok.com/
        
         | stevekemp wrote:
         | My watch collection is 50% vintage soviet, and modern Vostok
         | pieces, and 50% high-end Swiss. Along with a single Casio
         | F-91W.
         | 
         | The Vostok pieces are what I'd recommend to anybody interested
         | in mechanical watches, they're cheap, cheerful, and come in so
         | many varieties and designs.
         | 
         | (Today I'm wearing a Vostok Amphibian 120813.)
        
       | 99_00 wrote:
       | I have a Casio F-105W. The resin strap broke after 2 years of
       | wearing it inconsistently.
       | 
       | I would not buy it again.
       | 
       | I also have a Casio MQ24 (analog). It has a resin strap, which so
       | far hasn't broken. When it does I will upgrade to an analog watch
       | without a better strap.
       | 
       | I prefer analog because the hands act as a visualization of them
       | time. They make a pie chart. I am somewhat "time blind" so this
       | helps me.
        
         | lucideer wrote:
         | > _I would not buy it again._
         | 
         | Seems likely bad luck
         | 
         | I've a few Casio F-91Ws and wear them everyday. The strap on
         | the most recently-purchased one broke after a few weeks of
         | infrequent use. The rest I've had for many years, never had any
         | issues.
        
           | 99_00 wrote:
           | Thanks for the feedback. They have great reviews, so I
           | suspect you are right.
        
         | jerry1979 wrote:
         | The resin straps also don't feel very nice on my wrist. I
         | highly recommend a nato strap:
         | https://natostrapco.com/collections/all-watch-straps/18mm
         | 
         | I believe any of the 18mm straps should work on the F-105w, but
         | make sure to do your own due diligence.
         | 
         |  _edit_ : Make sure to check out this site for other kinds of
         | nato-style straps:
         | https://www.cheapestnatostraps.com/collections/paratrooper-s...
        
       | BuildTheRobots wrote:
       | There's something quite pleasing about simple watches. I think
       | the think I liked primarily was only having to worry about
       | changing/charging the battery every couple of years.
       | 
       | I've still got a beat up Casio VDB-200 which was a 90's
       | touchscreen + databank watch. The last time I put a battery in
       | it, it still had my school timetable programmed in. I'll throw
       | another battery in it tonight and see if it's still working.
       | 
       | If I'm expecting to get stuck in a public waiting room then the
       | CMD-40 is great. IRDA TV remote built in, so a TV-be-Gone a
       | decade earlier. The TV-be-gone is a lot quicker and more ranged
       | about it, but this was baffling to teachers in the 90s.
       | 
       | Having had to google both of them (I can't read the numbers off
       | the back), I'm amazed at the sort of prices they're both
       | commanding. I thought they were cool and rare as a kid; it still
       | seems to be the case :)
        
       | ChrisMarshallNY wrote:
       | I have 3 Oceanus (Casio boutique brand) watches.
       | 
       | The two that I got in Japan actually have "Casio" under the
       | "Oceanus" label.
       | 
       | They are great watches. Not especially cheap, but they are far
       | better than my kilobuck Junghans.
       | 
       | I wear none of them, though. I have been wearing my Apple Watch
       | (cheaper than the Oceanus watches) for the last couple of years.
        
       | danielg0 wrote:
       | Why is this post marked as being from 2017? Wasn't it released
       | yesterday (20th according to https://n-o-d-e.net/rss/rss.xml)
        
         | susam wrote:
         | I have no idea! I had set the following title while submitting
         | this story:
         | 
         |  _More Casio Watch Mods (LCD Colors, Transparent Display, Micro
         | SD, Strap Remover)_
         | 
         | It appears that a moderator has edited the title and added the
         | year 2017 to it while updating it. But it is a mystery where
         | they picked "2017" from. It occurs nowhere on the page.
        
           | apgwoz wrote:
           | I'm not even sure n-o-d-e was even a thing in 2017!
        
         | igneo676 wrote:
         | I came here to say the same thing. This was definitely released
         | recently according to the feed, youtube video, and personal
         | experience
        
       | stoolpigeon wrote:
       | when I was in high school in the 80s we'd do the flipping the
       | polarizer thing a lot. Never went beyond that though.
        
       | sharmin123 wrote:
       | The Best And Easiest Ways To Protect Yourself From Hackers:
       | https://www.hackerslist.co/the-best-and-easiest-ways-to-prot...
        
       | luke2m wrote:
       | Love my AQS800W, does anyone have recommendations for a nato
       | strap for it?
        
       | salamandersauce wrote:
       | Not quite related but I recently got into the world of Game Boy
       | modding. Kind of amazing to see all the things like people
       | figuring out how to reuse high resolution IPS displays with old
       | DMG Game Boys, Bi-inverter mods to improve the original displays,
       | 3rd party shells galore too. All for stuff 20-30 years old.
        
         | lapetitejort wrote:
         | At this point, all you need is the back motherboard from a
         | beaten up Game Boy and you can get a fully function unit for
         | about $100. The front daughterboard, screen, power board, sound
         | board, membranes, buttons, case, stickers, and lens can be
         | bought second hand, and in good quality. Then you can add on
         | USB C rechargeable batteries, sound amplifies, AV out (for GBA
         | and above, for now)... Every few months a radical new mod comes
         | out.
         | 
         | My only concern is that modders might be tempted to pull out
         | old mods to install slightly upgraded versions. We're talking
         | about 30+ year old devices, and yet the mods are going out of
         | date.
        
         | cafemachiavelli wrote:
         | The hardware does have its charm, I remember implementing DMG
         | on an FPGA some years ago to learn HDL coding and it was a lot
         | of fun.
        
       | tipoftheiceberg wrote:
       | I've been looking at the Garmin Tactix Delta Solar watch, hoping
       | it goes on sale this season. Anyone own this watch?
        
       | approxim8ion wrote:
       | The F-91W is a remarkable little watch, and I wear it a lot. I
       | did replace the resin strap with the thinnest (because the lugs
       | only allow for an extremely thin strap) and cheapest NATO strap I
       | could find on AliExpress. Whether it is my skin or the climate, I
       | found the stock strap very irritating. NATO straps are made of
       | nylon and are pretty much indestructible.
        
       | germinalphrase wrote:
       | Anyone have a recommendation for a digital watch with high
       | quality pushers? I prefer a digital day-to-day, but I use the
       | pushers extensively and they always seem to go mushy/lose
       | responsiveness very quickly.
       | 
       | It's hard to go back after experiencing modern buttons on (eg)
       | phones. Tactile, long lasting, responsive.
        
       | ngd wrote:
       | I've been wearing a Casio F-91W for a number of years now and it
       | really is a joy. It's always there, and it always works.
       | 
       | I've gone down the rabbit hole with expensive time pieces but
       | they become a burden / obligation rather than a tool - especially
       | as the prices of certain pieces in the secondary market have gone
       | so high - so over time I've reverted back to much cheaper watches
       | and find myself getting more joy out of the cheaper & much better
       | value for money brands.
       | 
       | Very occasionally I'll take it off in favour of a dress watch for
       | a special event but otherwise I just wear it all the time,
       | knowing that if it finally fails I'm looking at $10 to replace.
        
         | walrus01 wrote:
         | > I've gone down the rabbit hole with expensive time pieces but
         | they become a burden / obligation rather than a tool
         | 
         | If you want something that looks nice and is a Casio, search
         | "casio edifice" on ebay, used, you can find many good watches
         | under $100.
         | 
         | randomly chosen example
         | 
         | https://www.ebay.com/itm/192205400394?epid=19011028556&hash=...
        
           | ngd wrote:
           | That's a cool recommendation. Thank you!
           | 
           | Like many others on here have noted, there are some really
           | nice Seikos and Casios that look great, keep fantastic time
           | and won't break the bank.
           | 
           | I am not a completely reformed addict though in this regard,
           | as I do have a handful of Seikos and Casios, and recently
           | picked up a Serica 4512 as my dressy / special occasions
           | watch.
           | 
           | One thing I've realised about this world and "collecting" in
           | general is there is nothing wrong with trying things out and
           | refining your collection / process as you learn more about
           | yourself and what you get out of it all.
           | 
           | I've learned that the more traditional expensive time pieces
           | are just more of a headache then I care to bare. A Rolex or
           | Patek sitting in a safe because you're stressed about using
           | it, scratching it or getting robbed just isn't worth it for
           | me personally. No judgement passed on what other people do or
           | don't do with their stuff though! If a Patek in a safe brings
           | you joy, all power to you!
        
             | walrus01 wrote:
             | What I have found is that if you look carefully, good
             | condition watches from the edifice series (there must be
             | 200 models by now) occasionally show up at $35-45 per
             | piece. I even found a few original waveceptors which will
             | receive the US WWVB time broadcast for automatic time
             | synchronization over long wavelength radio.
             | 
             | I cannot even imagine wearing a watch with more than a
             | hundred bucks, because I'm clumsy and will inevitably hit
             | it on some hard surface and scratch it.
        
         | marban wrote:
         | I buy one every year or so I go to Japan purely on impulse but
         | in reality, there are hardly any occasions for me to use such
         | sandwich products when the decision is between an Apple Watch
         | as the daily driver and a Tag Heuer for a night out.
        
           | DiggyJohnson wrote:
           | I think there's not a whole lot of discussion going on
           | whether Apple Watch powerusers would prefer a Casio.
           | 
           | Not to say you were implying this in the first place, though
           | I think the point is relevant.
        
           | criddell wrote:
           | If you stop thinking about the Apple Watch as a watch and
           | more as a data collection and display device, maybe dual-
           | wristing would be an option?
           | 
           | It's not that unusual to see people out with a watch on one
           | wrist and a fitness device on the other wrist.
        
             | [deleted]
        
             | t0mas88 wrote:
             | I used a Tag Heuer Carrera as a watch for many years.
             | Accuracy isn't perfect, but you adjust it maybe once every
             | few months, so it also isn't an issue. And I really liked
             | the see-through kind of mechanics and the strap.
             | 
             | But then came the Apple Watch, and now I wear that every
             | day. It's a bit more convenient, tracks health data I like
             | and is around 1/10th the price of a nice watch. The latter
             | also means I don't take it off when I go to the playground
             | or jump in the pool. There were some scratches on my
             | previous Apple Watch, but before that really becomes an
             | issue you want to buy a new model anyway for the extra
             | features and better battery life. So in practical use I
             | like it more than a "real" watch.
        
             | ngd wrote:
             | I also found that being able to always reach to my wrist
             | for the time has become a habit and when I tried an Apple
             | watch that was scuppered by the off wrist charging so like
             | you say, I treat that right wrist as the "data collection"
             | wrist, which for the last few years has been home to a
             | heart rate and HRV monitor.
        
         | coldtea wrote:
         | Pro tip: Casio F-105W-1A. 95% the same as F-91W, but with an
         | actual working backlight.
         | 
         | (The "square" models, e.g. DW-5600 are also quite cheap and
         | even better functionality wise, though a tad more expensive).
        
         | EamonnMR wrote:
         | Luckily Casio makes a gold-colored version for special
         | occasions.
        
           | cunidev wrote:
           | In all honesty, the gold Casio doesn't look bad at all with a
           | dress
        
             | spicybright wrote:
             | You're definitely right! Although when I get mildy dressed
             | up I'll still rock the black strap lol
             | 
             | https://www.ebay.com/itm/274335788294
             | 
             | Rose gold looks awesome here.
        
         | jacquesm wrote:
         | Unfortunately my eyes are so bad now that when I'm nog wearing
         | glasses I can't read the display on the Casios, so instead I
         | got a Seiko '5', an old fashioned mechanical watch that keeps
         | fairly accurate time and has a normal dial that I can read
         | easily without glasses. It's an automatic, nothing to wind and
         | no batteries to replace. I'm super happy with it, have it for
         | about five years now and it looks as good as new in spite of
         | wearing it every day, rain or shine (or mud, grease, sandpaper
         | and so on).
        
         | MegaDeKay wrote:
         | I got an F-91W in April for those times when I am banging
         | around and don't want to risk messing up my beloved Casio
         | 6510BC. I set the time on the F-91W when I got it and it has
         | only drifted off 21 seconds in that time. That is impressively
         | accurate for a $20 CAD watch.
        
           | kqr wrote:
           | > it has only drifted off 21 seconds in that time
           | 
           | Quartz watches are really magic in terms of keeping time. We
           | take it for granted, but it's insane how accurate they are.
           | 
           | Watch accuracy was a big deal before quartz-based watches,
           | because it was really hard to construct watches that kept
           | time with the accuracy required for celestial navigation etc.
           | Sufficiently accurate watches are a whole separate category,
           | called chronometer. There are certification institutes that
           | put watches through internationally standardised thorough
           | testing to check whether the watch truly conforms to the
           | chronometer label.
           | 
           | Even the cheapest quartz watch will pass the chronometer
           | tests with ample margins. It's not even a fair fight.
        
           | foxfluff wrote:
           | > Casio 6510BC
           | 
           | What's this?
        
             | CraigJPerry wrote:
             | Typo i think, 5610 is a really popular gshock
        
         | kqr wrote:
         | I agree on all points, except I prefer my watches mechanical,
         | rather than electronic.
         | 
         | So I got one of the cheapest Seiko automatic watches. Being
         | mechanical it's obviously going to cost more and keep time much
         | less accurately than a quartz watch. Other than that, I
         | identify with your comment.
         | 
         | The cheap automatic Seiko is always there, and it always works.
         | Don't have to worry about putting it away and then needing to
         | replace its battery - it has no battery. I can bang it about
         | and while I'm sure it might break at some point with the way I
         | treat it, it won't be too painful to get another one.
         | 
         | It's no-frills, keeps the time as accurately as I need it to,
         | and doesn't take a lot of space on my wrist. Couldn't be
         | happier.
        
           | shimonabi wrote:
           | I accidentally damaged the spring on the balance wheel while
           | adjusting my Seiko 5. I then bought a new Chinese NH36
           | movement for 30$, which can also be wound by hand and is
           | hacking (movement stops when adjusting). I also had to
           | transplant the dial/day dial and get a new crown.
           | 
           | I love mechanical watches and would definetely be a
           | watchmaker if I was born before the quartz revolution.
        
             | hanklazard wrote:
             | Yes, the "auto-only" base Seiko movement is pretty
             | annoying, if you're not wearing it everyday. For anyone who
             | hasn't experienced one, imagine that when you want to wind
             | your watch, you have to turn it dial up in your hand and
             | rotate the whole watch for 30 seconds (the so-called seiko
             | shake) such that you spin the rotor inside.
             | 
             | I ended up swapping my SKX movement out for a hacking /
             | hand-winding movement too, much better.
        
               | spicybright wrote:
               | That sounds terrible lol. And then you have to find some
               | other clock to reset it after you rotate it. Is 30
               | seconds always enough? I'd be nervous of it running slow.
        
           | falcolas wrote:
           | On the note of cheap automatic watches, Starking is
           | shockingly good (and good looking) for a $60 automatic watch.
           | It has a lot of issues when put under a microscope, but it's
           | accurate enough for daily wear.
        
           | LoneWolf wrote:
           | I had a F-91W for years, I still have it and it still works,
           | but like you I moved to an automatic Seiko 5 (the smallest I
           | could find as my wrist is quite thin), for two reasons I
           | wanted something more good looking, and I didn't want to
           | worry about batteries (although they last years)
        
             | kube-system wrote:
             | I did the opposite. Wore a Seiko 5 for a while until I got
             | tired of not trusting it, then switched to an F91w. The
             | Seiko is very good for an affordable automatic, but it's
             | hard to beat a quartz for "it just works".
        
               | jacquesm wrote:
               | It sounds like yours needed regulation. Properly
               | regulated you can trust them just fine.
        
               | kube-system wrote:
               | It wasn't out of spec, I'm just referring to the general
               | weaknesses of automatics. If I spend the weekend doing
               | physical activity where I don't want to wear a watch,
               | Monday morning I'll be resetting my Seiko 5. With my
               | F91w, I can take a long vacation, and spot check a system
               | clock to the second when I get home.
        
           | ilamont wrote:
           | Citizen is another Japanese watchmaker and the eco-drive
           | solar technology has been around for about 30 years.
           | 
           | You can get a low-end Citizen Eco-Drive for about $100,
           | sometimes even less on sale. Solar powered, very durable, and
           | they look great. Most are water resistant as well.
           | 
           | I've had one model running continuously for 11 years. I love
           | never having to charge it or change the battery.
        
             | officeplant wrote:
             | My roommate is a watch collector and made me almost buy an
             | eco-drive watch so many times. I really like the idea of
             | them, but after not wearing a watch for 20 years it just
             | feels uncomfortable to wear one. PDAs and cellphones ruined
             | my ability to wear watches.
        
             | q-base wrote:
             | I can only chime in and support this claim about Citizen. I
             | have had one of their Eco-drive models for about 15 years
             | now and it has had months in drawers or laying on shelves
             | not being used, but it has never stopped working. I am so
             | impressed with that watch!
        
               | Tarsul wrote:
               | yes, I love mine too. However, after a very dark december
               | mine stopped (and I was very confused by it ;)). Had to
               | put it on the window sill for a few days for it to work
               | again.
               | 
               | My personal advice for anyone looking would be the
               | following triumvirate: solar ("eco-drive"), sapphire
               | glass (never mineral glass!), radio controlled. It just
               | works - you don't have to do anything ever again (except
               | maybe if you have a december like me...).
        
               | snicky wrote:
               | Recently, I bought another watch that fits your
               | description + it's absolutely gorgeously looking - Casio
               | Oceanus T200. It's a dress watch with a mesmerizing dial
               | and a beautiful case with some superb polishing that is
               | done in the same factory where they produce cases for
               | Grand Seiko. As an additional gimmick you also get
               | Bluetooth - the watch can connect with your phone every
               | night and seemlessly adjust the time, so it's basically
               | always spot on. They sell it in Japan for around 400$.
        
           | jacquesm wrote:
           | They're nigh on indestructible, mine is still working after
           | five years of heavy use, working with power tools (including
           | a jackhammer for a bit, because I forgot to take it off, I
           | was pretty sure that it was ruined but it didn't even drop in
           | accuracy).
        
       | jenny91 wrote:
       | As an engineer I like these watches because they keep time
       | extremely accurately. The drift on mine is something like 1-2
       | seconds per month.
        
       | betwixthewires wrote:
       | I used to follow this guy and his hardware designs, particularly
       | I am interested in small simple meshnet related things. He is
       | really good at design.
        
       | Severian wrote:
       | Hmm, a MicroSD card is handy, but how about a MicroSD card to USB
       | reader _in the watch strap_?
        
         | trevcanhuman wrote:
         | Clever, I suppose a strong metal backplate could be made for
         | the usb to rest below the watch itself, but maybe it'd take too
         | much space. I think a microcontroller for the microSD to usb is
         | needed.
        
         | cpu wrote:
         | On an earlier page[1] the author mentions that they at one
         | point "designed a more complex backplate which included [...] a
         | built in micro SD card reader, that you could read directly by
         | plugging in a micro USB cable", among other things.
         | Unfortunately, they go on to lament that this made the watch
         | comically thick. As you say, the strap might be a good place to
         | cram a USB interface without bulking up the watch body.
         | 
         | [1]: https://n-o-d-e.net/datarunner.html
        
       | jdhawk wrote:
       | Shocked someone has not posted the article about why its so
       | popular among al-Qaida. Always a fun read.
       | 
       | https://www.vice.com/en/article/pkebp8/casio-f91w-watch-terr...
        
         | philihp wrote:
         | They Americans will send you to Gitmo for wearing one of these.
        
           | [deleted]
        
         | knodi123 wrote:
         | amazing takeaway paragraph:
         | 
         | > United States Intelligence quickly noticed the prevalence of
         | F-91Ws on the wrists of Islamist fighters. Secret files about
         | the Guantanamo military detention camp published by Wikileaks
         | say Pakistani authorities discovered some 600 to 700 Casios in
         | two workshops in Karachi, and that simply owning one could
         | warrant an interrogation. One prisoner's evaluation sheet
         | confirms "about a third of inmates at JTF-GTMO [the unit in
         | charge of Guantanamo] who were captured wearing one of these
         | watches had a known correlation with explosives".
        
       | bcopa wrote:
       | I bought F-91W for my SATs in senior year of high school... I've
       | been an acolyte ever since. It's hands-down the most comfortable
       | and versatile watch I've ever worn.
       | 
       | My dream is a partnership between Apple and Casio that ads some
       | of the smart watch features & biometric measurements to a classic
       | F-91W design...
        
         | bradleysmith wrote:
         | I share this dream.
         | 
         | light fitness tracking in a forever battery w simple subtle
         | design would win me. Something like the MQ24-7B2 mechanical
         | with similar features would be the bees knees.
        
           | bcopa wrote:
           | Hope Tim sees this!!!
        
       | falcolas wrote:
       | This particular video is _not_ from 2017, it was posted
       | yesterday. You can confirm this by looking at the video on
       | Youtube, or via their RSS feed.
        
         | susam wrote:
         | Indeed! Also, see this comment thread:
         | https://news.ycombinator.com/item?id=28605766
        
       | joeberon wrote:
       | I have this watch. My wife spent weeks trying to sell it on
       | Facebook marketplace but they kept insisting it was an
       | inappropriate item even after human intervention. I know it has
       | connections with IEDs and terrorism, so I wonder if it is related
       | to that.
        
         | adolph wrote:
         | Thats weird. Amazon even sells bulk packs:
         | https://www.amazon.com/Casio-Special-Package-Classic-Chronog...
        
       | trevcanhuman wrote:
       | Great, he's back!!
        
       | lancesells wrote:
       | This site is really nice. Videos aren't Youtube embeds, zero
       | tracking scripts, RSS feed, and quite fast. Subscribed.
        
       | luxpir wrote:
       | Also a Casio fan, having picked up a GWM5600BC Radio
       | Controlled/Solar model in 2010. I'm wearing it to this day,
       | having never changed the battery, taken out through all manner of
       | wet and cold situations. I did sometimes have the problem of the
       | battery running low in winter but switched off the wrist-flick
       | light feature which constantly misfired under-sleeve and haven't
       | had it since. Atomic clock updates daily are the cherry on top.
       | Here's to the next decade!
        
         | bjarneh wrote:
         | Can't go wrong with a square, timeless design.
        
         | iszomer wrote:
         | Also a Casio fan. I have the GW1701D from 2006 as my daily
         | driver and have not had to replaced it's battery. Some of the
         | newer models that sport MIP displays are beautiful but is hard
         | to compromise in not having at least a solar element and atomic
         | timekeeping as the standard minimum of features.
        
       | nemetroid wrote:
       | I bought a F-84W off eBay a few years ago, and can highly
       | recommend it. Same innards as the F-91W and very similar look,
       | but with slightly muted colours and a sleeker design.
        
       | themodelplumber wrote:
       | Not really a mod, but I use the alarms on my Casios to store
       | data, like calories consumed, protein, hydration, distances,
       | progress, etc. I started with the databank models because you can
       | use text labels in the phone number display, but ended up wearing
       | some five-alarm models around so I adapted to those. Even without
       | the text it's kinda cool to think of what you can track.
        
       | easton wrote:
       | What's the microSD card for?
        
         | Loughla wrote:
         | Just for carrying around an extra microSD from what I can tell.
         | 
         | I genuinely don't see that being handy, but more of a feel
         | good, maybe nerd cred point?
        
           | globular-toast wrote:
           | It would be cool if there was a micro-USB port on the other
           | side to read the SD card. Maybe that's a bit optimistic in
           | this form factor, though.
        
         | ct0 wrote:
         | "
         | 
         | This addon allows you to attach a micro SD card socket to the
         | back of your F-91W for carrying around data. You will need a
         | small cross-head screwdriver to install the addon. Also be
         | aware that you will need to bend the 2 contacts up so they
         | still touch the inside of the metal backplate in order to have
         | the alarm beeping sound still present. Check this video out for
         | more info. "
        
           | t00ny wrote:
           | Piggybacking on this comment, more info here: https://n-o-
           | d-e.net/datarunner.html.
        
         | fimdomeio wrote:
         | just a place for storing an sd card. Does not interact with the
         | watch.
        
       | hulitu wrote:
       | Are there any digital (not smart ) watches besides Casio ?
        
         | wppick wrote:
         | Suunto and polar are two other's I've used
        
         | foxfluff wrote:
         | Seiko.
        
         | bserge wrote:
         | Are you serious?
         | 
         | https://www.aliexpress.com/wholesale?catId=0&initiative_id=S...
         | 
         | Or do you want a brand name _that you know_ attached to it?
         | 
         | Why not pick the Li-Ion cells in your devices by brand name,
         | too?
         | 
         | Come on, this is ancient tech, any $5+ watch works well.
        
           | quickthrowman wrote:
           | > Why not pick the Li-Ion cells in your devices by brand
           | name, too?
           | 
           | I do, I buy Samsung 18650 cells
        
           | hundchenkatze wrote:
           | I agree basic digital watches are old, but your aliexpress
           | search returns mostly smart watches for me.
        
           | foxfluff wrote:
           | > Why not pick the Li-Ion cells in your devices by brand
           | name, too?
           | 
           | I tend to buy Samsung cells.
        
         | twobitshifter wrote:
         | Timex and Armitron are the two others that come to mind.
        
           | petepete wrote:
           | Also Braun. Beautiful but pricey.
           | 
           | https://braun-clocks.com/collections/digital-watches
        
             | drivers99 wrote:
             | Weird. It briefly shows a watch but changes to "No products
             | were found matching your selection." But if I inspect the
             | network tab, I do see the file:
             | 
             | https://cdn.shopify.com/s/files/1/0278/8851/7235/collection
             | s...
        
       | gorgoiler wrote:
       | I dug out my Casio MD-502 recently. It is now my daily timepiece
       | -- half diver, half vintage, 100% field watch. Get one. That is
       | all.
        
       | peanut_worm wrote:
       | I got one of these guys watches, it has an RFID chip but I can't
       | think of anything to do with it.
       | 
       | It looks really cool though. The light is nice too since its
       | bright enough to use as a flashlight when its dark enough.
        
         | varikin wrote:
         | I use to work at a place that included parking in rfid
         | activated ramp. I always wanted to clone my badge into
         | something sewn into the wrist of my motorcycle jacket so I
         | didn't have to fumble for my badge while entering and leaving
         | the ramp. In a watch would be perfect.
        
       | yason wrote:
       | Can the ROM be read and flashed back on Casio watches?
       | 
       | I once bought a solar G-shock but the watch UI is horrible: it
       | does not display the battery charge anywhere on the watch.
       | Instead, it wants you to install a Casio app that connects to the
       | watch via BT. However, even the app doesn't show the battery
       | charge with more than a few scrambled pixels in a small icon. So,
       | useless.
       | 
       | I still don't know how much battery I had left at the time: I
       | eventually got a low battery warning during the winter with no
       | good sunlight to charge it and so I forgot about the watch. You
       | would think a solar watch would want to boast with a highly
       | visible battery level indicator on the screen, and also because
       | it would be a very useful thing.
       | 
       | If the ROMs are hackable I'd be interested in looking at the
       | assembly if for nothing else but to fix that battery level
       | indicator.
        
         | karotte wrote:
         | > Can the ROM be read and flashed back on Casio watches?
         | 
         | I doubt that they use any kind of reprogrammable memory, but
         | you can swap out the entire board like I did:
         | https://github.com/carrotIndustries/pluto
        
         | thenanyu wrote:
         | Regarding the battery meter -- Casio just updated much of the
         | classic g-shock line with the 5xxxU versions. They have many
         | much requested features including a battery indicator.
         | 
         | Example: https://www.otto.de/p/casio-g-shock-funk-
         | multifunktionsuhr-g...
        
           | yason wrote:
           | Nice, thank you! I might actually consider upgrading, I have
           | no other complaints about G-shock. It is somewhat bizarre
           | though that a watch in the 2020's lists a battery indicator
           | as a feature...
           | 
           | I had an analog solar watch before. While it was beautiful it
           | couldn't take the beating I seemed to give it time after
           | time, and gradually the hour dots were broken loose and one
           | of the indicator hands also got dislocated. Thus, I decided
           | to try the digital G-shock with no moving parts and it was
           | great. No matter where it hit, nothing broke. Got dirty? Wash
           | it while showering. No problem. Now if it comes with the
           | battery indicator then I must simply choose another thing
           | whose ROM to dump and disassemble :)
        
             | SamReidHughes wrote:
             | Practically all solar powered G-Shocks have a battery
             | indicator (lo/med/hi) that's visible all the time, this
             | isn't a new feature.
        
       | toastal wrote:
       | I was so happy to see him being back to posting this morning,
       | even if he noted that he doesn't plan to do it as often and
       | considered quitting the content creation. This content always
       | exemplifies the DIY hacker.
        
       | KingOfCoders wrote:
       | My GW-M5610-1ER is the perfect watch for me. Solar, Gshock
       | robustness, water proof, radio controlled, cheap and looks 80s.
        
         | MegaDeKay wrote:
         | I have the GW-M5610BC! Got it vs the standard 5610 for the
         | negative display that makes it look like Darth Vader's watch.
         | This is indeed the perfect watch. I love it.
        
         | gadders wrote:
         | I feel the same about by GW-6900. I have other watches, but I
         | wear that one 90% of the time. No worrying about batteries, no
         | worrying about me being a clumsy git, and it's always accurate.
        
         | tricky wrote:
         | Same. Out of my entire collection, the 5610 gets the most wear
         | because for me it is the perfect watch. It is so rugged, I can
         | keep it on while wrenching on cars and it still looks fine
         | after several years.
        
       | DizzyDoo wrote:
       | I got a Casio watch from Amazon about five years ago, there was a
       | deal on and it was about CAD$20. A budgetary driven decision, for
       | sure!
       | 
       | But it's been fascinating to see, over the years, how many times
       | I've been approached (in a coffee shop or some other public
       | place) by serious Casio enthusiasts, keen to ask about my watch
       | and to show theirs. There's so many variations, colours, limited-
       | runs editions... I seem to have accidentally stumbled into a
       | niche with lots of passionate hobbyists - I'm sort of glad I had
       | to replace the awful strap, which snapped, so I actually have
       | something to contribute to the conversation. I had no idea Casio
       | watches were such a big thing, but now I'm not at all surprised
       | there are modding projects like this.
        
         | tokai wrote:
         | I got a couple of casio watches from Amazon years back. Then I
         | brought one in a physical watch store and realized that all the
         | watches purchased through Amazon were fakes. Especially the
         | strap is so much better on the real thing.
        
           | felixgallo wrote:
           | nonsense. I've bought lots of Casio watches on Amazon and
           | have never encountered a fake.
        
             | kube-system wrote:
             | There are lots of third party sellers hawking fake Casios
             | on many online marketplaces.
        
           | DizzyDoo wrote:
           | I wouldn't have been surprised to find out my F-91W was
           | counterfeit! But I just went and watched a "30 ways to tell
           | if your Casio watch is fake" video on YouTube and it looks
           | like my watch is legitimate. I probably wasn't careful enough
           | with the strap, it just disintegrated at one of the
           | connections to the face.
        
             | criddell wrote:
             | > it just disintegrated at one of the connections to the
             | face
             | 
             | That's a very common problem on the inexpensive Casios.
             | When it happened to my watch I found that new watch cost
             | less than a new strap.
        
             | crhutchins wrote:
             | Is there any way you can link up the exact video? I'd like
             | to examine my Casio.
        
               | DizzyDoo wrote:
               | Yes, it was this one:
               | https://www.youtube.com/watch?v=cNnkDyGgvGk
        
               | creeble wrote:
               | I don't have a video link handy, but this British mod
               | dude has a very brief summary:
               | 
               | Guide.Zenn22.Shop (redirects to a steam site I think). He
               | has many modded F91W's on eBay.
               | 
               | I have one "fake" F91W, it's actally SKMEI branded and
               | keeps fine time. Not sure I believe his claim that the
               | fakes are so inaccurate, but maybe.
        
               | yyx wrote:
               | How do you like SKMEI? Backlight must be way better than
               | F91W.
        
         | tamiral wrote:
         | Casio is such a staple in the watch community and because it's
         | so affordable and there are tons of cheap mods to create,
         | peoples creativity comes out. I remember talking to my team
         | about how I had the Casio calculator as a kid and walked by
         | Walmart the next day found it, bought it and next standup
         | meeting we spent some time reminiscing about our childhood.
        
         | nowherebeen wrote:
         | I recently got a $20 Casio watch as well. Unlike the Garmin
         | watches, I never have to charge it. It tells time and that's
         | it. I never noticed how often I checked my phone just to check
         | the time until I got this watch. I love it.
        
           | foxfluff wrote:
           | I've noticed how often I check the time on my phone. Tapping
           | the screen isn't a big deal but I still feel like a flick of
           | the wrist would be more convenient, and there are times when
           | the phone isn't right next to me.. Also, digging a big phone
           | out of the pocket and putting it back when I'm on a walk is
           | worse, nevermind doing that while driving a car (the clock on
           | the radio seems to be always wrong).
           | 
           | So I've been thinking about buying a watch for a couple years
           | now. I finally did it last Saturday. Coincidentally, a Casio,
           | and thanks to this thread I'm even more excited for it than
           | before :) It hasn't been shipped out yet.
        
         | serial_dev wrote:
         | Wow, for me finding this thread has been a revelation, I didn't
         | know there were other people that liked the casio watches like
         | I do. I had them as children, then as an adult I accidentally
         | stumbled upon a green model at the Madrid flea market, I
         | thought how amazing, this color is epic. Forgot about it for
         | years, then was frustrated with smart watches and the time it
         | would take to start a stopwatch, so I went on Amazon and bought
         | a bunch of them so that I always have at least one that I can
         | find at any time
        
       | trts wrote:
       | It's fun to be a Casio fan. I rediscovered the classic 5600E
       | (https://gshock.com/watches/digital/dw5600e-1v) a few years ago
       | and was thrilled to be in a position to afford what I only got to
       | admire behind the jewelry cases as a kid.
       | 
       | Then I discovered the community of G-Shock modders and
       | collectors. There is something very special about Casio watches
       | that is hard to describe. In some sense I feel they take on the
       | platonic form of a digital timepiece. And they're cheap (although
       | they have special ed. titanium models that resell for >$2K).
       | 
       | It's true that they are conversation starters among other fans.
       | 
       | The original G-Shock watch released in 1984 was designed with an
       | aim at the "triple 10" concept. That is, the battery should last
       | 10 years, be able to survive a 10-meter drop and be water
       | resistant to 10 bars.
        
       | beebeepka wrote:
       | I've always liked watches and some of the stuff Casio has always
       | been incredibly appealing to me. They look so cool and
       | functional. Wearable electronics at its peak!
       | 
       | But as much as I want to buy a lightly rugged unit, I just have
       | no actual use for a watch...
       | 
       | unless I manage to get my hands on a unit with at least reliable
       | compass, if not a satellite positioning solution.
       | 
       | That might work for me even though I go hiking to get away from
       | humans and technology
        
         | foxfluff wrote:
         | Oh I'd love a chronograph with a compass and slide rule.
         | 
         | Btw, there are small compasses that you can attach to a strap,
         | including many watch bands.
         | https://www.varusteleka.com/en/product/suunto-clipper-l-b-nh...
         | 
         | Of course you an also use an analog watch + sun to orient
         | yourself. https://www.gearpatrol.com/watches/a386344/how-to-
         | use-a-watc...
        
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