Case size (L× W× H): 53.3 × 52.2 × 16.8 mmWeight: 58 gCase and bezel material: Case / bezel material: ResinBand: Resin BandWater resistance: 100-meter water resistancePower supply and battery life: Approx. battery life: 10 years on CR2025Glass: Resin GlassWorld timeWorld time Current time in 30 cities (29 time zones), daylight saving on/offStopwatch1/100-second stopwatch Measuring capacity: 23:59'59.99' Measuring modes: Elapsed time, split time, 1st-2nd place timesTimerCountdown timer Measuring unit: 1 second Countdown range: 24 hours Countdown start time setting range: 1 minute to 24 hours (1-minute increments and 1-hour increments)Alarm/hourly time signalDaily alarms 3 independent daily alarms (2 one-time alarms and 1 snooze alarm)Hourly time signalCalendarFull auto-calendar (to year 2099)AccuracyAccuracy: ±30 seconds per monthOther featuresTelememo Memory capacity: Up to 30 sets of data, with 8-character name and 16-digit telephone number Others: Remaining memory screen, auto-sort12/24-hour formatRegular timekeeping: Analog: 2 hands (hour, minute; hands move every 20 seconds) Digital: Hour, minute, second, am/pm, month, date, dayID: 50003120