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With multiple features that help simplify your life, this Casio watch from the Vintage Collection has a digital LED display with LED light and countdown timer. It is also equipped with 1/10th second stopwatch, daily alarm and auto calendar.Encased in a stainless steel case and bracelet secured with fold-over clasp.Water resistant.
Casio F91w-1 Classic Resin Strap Digital Sport Watch - Black
Casio F91W Stealth Mod : r/casio
Modded Casio F-91W : 5 Steps (with Pictures) - Instructables
ARCH-MOD
Tesla Key Watch
Casio F-91W Stealth Mod