Case / bezel material: ResinResin BandShock ResistantMineral Glass200-meter water resistanceElectro-luminescent backlight Selectable illumination duration (1.5 seconds or 3 seconds), afterglowWorld time 29 time zones (48 cities), daylight saving on/off1/100-second stopwatch Measuring capacity: 59'59.99'' Measuring modes: Elapsed time, split time, 1st-2nd place timesCountdown 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)5 daily alarms (with 1 snooze alarm)Hourly time signalFull auto-calendar (to year 2099)12/24-hour formatButton operation tone on/offRegular timekeeping: Hour, minute, second, am/pm, date, dayAccuracy: ±30 seconds per monthApprox. battery life: 3 years on CR1616 
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