CASIO STANDARD WOMENS 100M - LWS-1200H-1A2VDFBasic Information Case size (L W H) 45. 5 40. 5 12. 4 mm Weight 30 g Case and bezel material Resin Band Resin Band Water resistance 100 meter water resistance Power supply and battery life Approx. battery life: 5 years on CR1620 Exterior Glass Resin Glass Compatible band size 145 to 215 mm Watch Features World time Dual time Stopwatch 1 100 second stopwatch Measuring capacity: 00'00''00~59'59''99 (for the first 60 minutes) 1: 00'00~99: 59'59 (after 60