Basic InformationCase size (L W H)52.3 50.9 14.3 mmWeight50 gCase and bezel materialResin / Stainless steelBandResin BandWater resistance100-meter water resistancePower supply and battery lifeApprox. battery life: 3 years on SR920SWExteriorGlassResin GlassCompatible band size145 to 215 mmWatch FeaturesStopwatch1/10-second stopwatch Measuring capacity: 59'59.9'' 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 1/10 seconds, stopwatch minutes, stopwatch seconds)Date display