Casio on a nato strap or original style? | WatchCrunch
Casio F-91W purchased Mar-2016. Wristband was rubbish and broke in 1 year, replaced with nato style nylon band. Has been bashed against concrete, submerged in river. Will update in another 4 years
Casio] After 11+ years the battery is still running on my F-91W, the original strap even broke before the battery has run out : r/Watches
Tips : The Easy Way of How To Remove Strap Pins of F91W, F94W, F105W. Don't use hammer !!! - YouTube