F-91W without the blue lines and "water resist"-text, was a finicky mod to do but looks way cleaner now, should i do the inverted screen mod too? : r/ casio
For Casio F91w/f84/f105/108/a158/168/ae1200/1300 Sport Waterproof Rubber Watch Strap Transparent Wrist Replacement Bracelet Belt - Watchbands - AliExpress
How to remove the pin and replace the strap on a Casio F91W - YouTube