Casio Super Illuminator Quartz Stainless Steel and Resin Black Men's Watch, (Model W-735H-1 A2VCF)

The case diameter is 45mm. 10-year lifespan, 100% waterproof, LED light; dual time, daily alarm/vibrating alarm. Quartz movement. Water resistant to 100m (330ft): Suitable for swimming and snorkeling, but not diving 10-year lifespan, 100% waterproof, LED light; dual time, daily alarm/vibrating alarm.