Brand New Casio Digital W218H-4BV Basic Information 50-meter water resistance • 1/100-second stopwatch • Daily alarm • LED backlight Case size (L× W× H) 44.4 × 43.2 × 10.8 mm Weight 37 g Case and bezel material Resin Band Resin Band Water resistance 50-meter water resistance Power supply and battery life Approx. battery life: 7 years on CR2016 Exterior Glass Resin Glass Compatible band size 145 to 215 mm