Basic InformationCase size (L W H)53 47 12.3 mmWeight157 gCase and bezel materialStainless steel / AluminumBandStainless Steel BandOne-touch 3-fold ClaspWater resistance100-meter water resistancePower supply and battery lifeApprox. battery life: 3 years on SR920SWExteriorGlassMineral GlassBack plateScrew Lock BackCompatible band size150 to 205 mmWatch FeaturesStopwatch1-second stopwatch Measuring capacity: 9'59 Measuring modes: Elapsed time, split time, 1st-2nd place timesAccuracyAccuracy: 20 seconds per monthOther featuresRegular timekeeping: Analog: 3 hands (hour, minute, second), 3 dials (stopwatch minutes, stopwatch seconds, 24-hour)Date display