#CasioF91W
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liliputing.bsky.social
Ollee Watch brings smartwatch features to the Casio F-91W with a mainboard replacement #Casio, #CasioF91whashtag/CasioF91w" class="hover:underline text-blue-600 dark:text-sky-400 no-card-link">#CasioF91w, #CasioF91w, #OlleeWatch, #Watch, #Wearables
Ollee Watch brings smartwatch features to the Casio F-91W with a mainboard replacement
The Casio F-91W is a classic digital wristwatch that's been in constant production since it was first released in 1989. With a $20 starting price, the watch offers a water resistant design, an LED backlight, and basic features include time, date, and stopwatch functionality. And you can go up to seven years without needing to change the battery. Over the past few years we've seen a few projects designed to bring the watch into the 21st century by replacing some key components while keeping the same design.
liliputing.com
September 23, 2025 at 3:46 PM
rjbayley.bsky.social
The greatest of all time. If you haven't got one in a drawer do you even wrist, bro?
#Casio #F91W #wristwatch #CasioF91W
A photo of a Casio F-91W watch on a white man's wrist. The desk beneath is a pale wood veneer and there are some black wires and a wireless charger in the background at the top of the photo.
October 28, 2025 at 7:17 PM
bammerlaan.mastodon.nl.ap.brid.gy
I was in a tinkering mood today and tried this little tin foil mod for the Casio F-91W: https://www.youtube.com/shorts/4qd8ehY7IrY

Forgot to take a before and after picture, but it's there in the video... Nice little improvement.

#diy #modding #F91W #CasioF91W #watch #watches #tinkering
A close-up view of a disassembled Casio F-91W wristwatch on a green cutting mat. On the left is a small circuit board with a Panasonic CR1616 3V battery attached. On the right is the white and grey plastic battery holder component, into which the battery fits. Two red arrows point toward a part of the write plastic part, where some tin foil has been added to make the LED reflect more light on the actual screen.
October 22, 2025 at 4:46 PM
buyversebazar.bsky.social
Casio F91W Series | Digital Watch | Water Resistant | LED Light | 1/100 SEC Stopwatch | Regular Time Keeping (HR, Min,

Visit the Casio Store
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#CasioF91W #DigitalWatch #WaterResistant #LEDWatch #Stopwatch #DailyAlarm #LightweightWatch #7YearBattery #CasioStore
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amzn.to
August 5, 2025 at 6:46 PM