Case size (L?? W?? H): 42.8 ?? 39 ?? 14.7 mmWeight: 34 gCase and bezel material: ResinResin BandShock Resistant100-meter water resistanceBattery: CR1616Mineral GlassCompatible band size: 125 to 180 mmWorld time29 time zones (30 cities), daylight saving on/off1/100-second stopwatchMeasuring capacity: 23:59'59.99''Measuring modes: Elapsed time, split time, 1st-2nd place timesCountdown timerMeasuring unit: 1 secondCountdown range: 24 hoursCountdown start time setting range: 1 minute to 24 hours (1-minute increments and 1-hour increments)5 daily alarmsHourly time signalLED backlight (Super Illuminator) Illumination duration (2 seconds), afterglowLight colorLED:WhiteFull auto-calendar (to year 2099)Mute featureButton operation tone on/offAccuracy: ??30 seconds per monthOther features12/24-hour formatRegular timekeeping:Hour, minute, second, am/pm, month, date, day