Case / bezel material: ResinResin BandShock ResistantMineral Glass200-meter water resistanceElectro-luminescent backlight Auto light switch, afterglowFlash alert Flashes with buzzer that sounds for alarms, hourly time signal, countdown timer progress beeper, and stopwatch auto startWorld time 29 time zones (48 cities), city code display, daylight saving on/offMoon data (moon age of the input data, moon phase graph)Tide graph (tide level for specific date and time)1/100-second stopwatch Measuring capacity: 23:59'59.99'' Measuring modes: Elapsed time, split time, 1st-2nd place times Other: 5-second countdown auto startCountdown 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) Others: Auto-repeat, progress beeperMulti-function alarms 3 independent multi-function alarms (2 one-time alarms and 1 snooze alarm)Hourly 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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