Mineral GlassShock Resistant200-meter water resistanceCase / bezel material: ResinResin BandLED BacklightFlashes with buzzer that sounds for alarms, hourly time signal, countdown timer time up alarmMulti time (4 different cities)World time31 time zones (48 cities + coordinated universal time), daylight saving on/off, Home city / World time city swapping1/100-second stopwatchMeasuring capacity: 23:59'59.99''Measuring modes: Elapsed time, split time, 1st-2nd place timesCountdown timerMeasuring unit: 1/10 secondInput range: 1 second to 24 hours (1-second increments, 1-minute increments and 1-hour increments)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 monthTotal weight: 85 g