Case size (L W H): 55.1 52.5 16.3 mmWeight: 69 gCase and bezel materialCase / bezel material: Resin / AluminumResin BandShock Resistant200-meter water resistanceBattery: CR2016Mineral GlassWorld timeMulti Time (4 different cities)31 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 secondCountdown range: 24 hoursCountdown start time setting range: 1 second to 24 hours (1-second increments, 1-minute increments and 1-hour increments)Alarm/hourly time signal5 daily or one-time alarmsHourly time signalFlash alertFlashes with buzzer that sounds for alarms, countdown timer (time up), hourly time signalLED backlight (Super Illuminator)Auto light switch, selectable illumination duration, afterglowLight colorLED:WhiteFull auto-calendar (to year 2099)Mute featureButton operation tone on/offAccuracy: 15 seconds per monthOther features12/24-hour formatRegular timekeeping:Hour, minute, second, pm, month, date, day