Details:Case size (L W H)44.8 39.9 7.8 mmWeight110 gCase and bezel materialCase / bezel material: Stainless steelBandStainless Steel BandOne-touch 3-fold ClaspWater resistance100-meter water resistancePower supply and battery lifeApprox. battery life: 3 years on SR916SWAccuracyAccuracy: 20 seconds per monthOther featuresRegular timekeeping: Analog: 3 hands (hour, minute, second)Date display