Case / bezel material: ResinResin BandShock ResistantMagnetic ResistantMineral Glass200-meter water resistanceLED light Auto light switch, selectable illumination duration (1.5 seconds or 3 seconds), afterglowWorld time 29 time zones (48 cities + coordinated universal time), daylight saving on/off, Home city / World time city swapping1/1000-second stopwatch Measuring capacity: 99:59'59.999'' Measuring modes: Elapsed time, lap time, split time Others: Speed (0 to 1998 units / hour), Distance input (0.0 to 99.9) Mach indicator (speed exceeding 1225 units / hour)Countdown 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) Other: Auto-repeat5 daily alarms (with 1 snooze alarm)Hourly time signalFull auto-calendar (to year 2099)12/24-hour formatRegular timekeeping Analog: 2 hands (hour, minute (hand moves every 20 seconds)), 1 dial (speed) Digital: Hour, minute, second, pm, month, date, dayAccuracy: ±15 seconds per monthApprox. battery life: 2 years on CR1220 
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