Case / bezel material: ResinResin BandShock ResistantMineral Glass200-meter water resistanceLED Backlight (Super Illuminator) Auto light switch, selectable illumination duration, afterglowDual time1/100-second stopwatch Measuring capacity: 99:59'59.99'' Measuring modes: Elapsed time, lap time, split time Memory capacity: Up to 60 records (used by lap/split time records and log title screens)Countdown timer Measuring unit: 1 second Countdown range: 24 hours Countdown start time setting range: 1 minutes to 24 hours (1-minute increments and 1-hour increments) Others: Auto-repeat, time up alarm3 multi-function alarms (with 1 snooze alarm)Alarm type: Daily alarm, date alarm, 1-month alarm, monthly alarmHourly time signalFull auto-calendar (to year 2099)12/24-hour formatButton operation tone on/offRegular timekeeping: Hour, minute, second, pm, month, date, dayAccuracy: ±15 seconds per monthApprox. battery life: 7 years on CR2025 
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