Taking a $15 Casio F91W 5km underwater(watchesofespionage.com) |
Taking a $15 Casio F91W 5km underwater(watchesofespionage.com) |
I got one for Christmas and it has been super fun to hack on. I programmed a new face for mine that displays the current tide level, and next high and low tides.
https://www.watchuseek.com/threads/need-help-gbx-100-tide-gr...
The app is kind of clunky and I have had issues with the live GPS tracking of activities but as they're not the main reasons I got it, I don't mind too much.
I have a free diving watch and always wondered… Why doesn’t it support tides? If even approximately? I wrote a script to check DFO tides once per week and alert me to potentially good diving conditions (cross referenced with the 2 week weather forecast; it’s not super reliable), but I’d love to have a read out of the tide right on my watch.
I guess I could do this with my Apple Watch, but I’m so burned out on that ecosystem.
https://www.etsy.com/listing/1448973768/back-light-spreader-...
1) https://www.youtube.com/watch?v=r6REKCs4-1M
FWIW, a correction is required here. Oil-modding a F91W will NOT make it a dive watch replacement as the video creator claims several times.
A dive watch is designed to be operated at that depth while the weak o-rings around the pushers on the F91W will give up when you use the buttons. Oil modding on it holds up during a dive as long as you'll never push the buttons, so it's more of a neat party trick for show than anything to daily drive.
Blue: https://www.creationwatches.com/products/casio-digital-350/c...
Grey: https://www.creationwatches.com/products/casio-digital-350/c...
Black: https://www.amazon.com/Casio-Environmentally-Friendly-Bio-Ba...
White: https://www.amazon.com/Casio-Environmentally-Friendly-Bio-Ba...
Kidding aside, that looks pretty neat.
Worth mentioning some drawbacks before you get your precision screwdrivers out. Doing it will make your watch get stupidly hot in the sun, the process can be messy, and sometimes certain mechanisms/features can break as a result of it. Best to check what others have done before you.
I'm wondering is there any other brend except Casio that has watches as amazing as those are.
The "oddly specific" website has 191K followers on Instagram[1] and has done interviews with Hodinkee, one of the most well known 21st century watch magazine/blogs. It is not that different from others that hit the first page here on HN.
https://www.youtube.com/watch?v=iOT8XU1ss3E (Do Oil-Filled (Hydro Mod) Watches Actually Dive Deeper?)
The timekeeping mechanism keeps working fine, though, it's only the display that's busted.
Here's a video of a PC immersed in mineral oil with an aquarium bubbler and you can see the bubbles rise fairly quickly:
Don't get me wrong, it's a nice demonstration but kinda expected outcome
Findings.
> 4,950 meters under the surface, the pressure is approximately 7,227 pounds per square inch, which is well over three tons pressing on the watch. For context, that’s a Dodge Ram 1500 or a young adult hippopotamus parked on every inch of your F91W. As Americans, we’ll do anything to avoid the metric system, but using scientific terminology, we’re talking about a shitload of pressure.
Appreciate the joke.
The firmware code quality is good as well. Well documented and easy to extend. It’s clearly a labor of love.
Just drag and drop, or detect the specific mass storage, or save to location from browser. Super easy.
Which, after checking that Casio mod site...is exactly what they use! So never mind ha ha. But the blog post on UF2 is certainly worth a read; it's just so simple, it's brilliant.
In the real world outside of sci-fi movies, any human diving much deeper than about 0.5km will have to be done in an an atmospheric diving suit.
https://www.greatwatches.co.uk/collections/men/products/casi...
https://tidesandcurrents.noaa.gov/about_harmonic_constituent...