Basic InformationCase size (L W H)48.5 43.8 11.6 mmWeight141 gCase and bezel materialStainless steelBandStainless Steel BandOne-touch 3-fold ClaspWater resistance100-meter water resistancePower supply and battery lifeApprox. battery life: 2 years on SR920SWExteriorGlassMineral GlassBack plateScrew Lock BackWatch FeaturesStopwatch1-second stopwatch Measuring capacity: 59'59 Measuring modes: Elapsed time, split time, 1st-2nd place timesAccuracyAccuracy: 20 seconds per monthOther featuresRegular timekeeping: Analog: 3 hands (hour, minute, second), 3 dials (24-hour, stopwatch minutes, stopwatch seconds)Date display