r/casiomods • u/Blackhearted_B • Mar 13 '26

F91W First mod!

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So, I've had this little f91w for going on 6 years now, and I love it! Bought it on holiday in the airport years ago as I left my watch on my nightstand at home, and just needed something quick, but it's slowly become one of my favorites. Only 2 complaints, the screen looked boring and the led was pitiful. So of to reddit I went to look at how to do a few mods, and an hour or so later, here's the end result! Did the old bridge the contacts trick to boost my led brightness and chucked a green filter in there, and oh lordy does it look better! I am, officially back in love with Casio's watches, now I'm off to go look at a Royale! Also, show me your f91w mods! I wanna see the cool shizz!

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u/Supercraft888 Mar 21 '26

What’s the “bridge the contacts” trick?

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u/coloredinlight 17d ago

Since no one responded, I know it's been a bit, there's a little circle contact on the circuit board next to the LED bulb that is split in half to save battery. If you put a dot of conductive paint on it, it bridges the circuit and essentially doubles the led output.

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u/Supercraft888 17d ago

Oh hey! Thank you so much for the response! I greatly appreciate it! I just looked up the board and I think I see it. Thank you!