HDDS100-1A

Case / bezel material: ResinResin BandResin Glass / Spherical Glass100-meter water resistanceLED backlight AfterglowDual time1/100-second stopwatch Measuring capacity: 23:59'59.99'' Measuring modes: Elapsed time, split time, 1st-2nd place timesDaily alarmHourly time signalAuto-calendar (to year 2099)12/24-hour formatRegular timekeeping: Hour, minute, second, pm, month, date, dayAccuracy: ±20 seconds per monthApprox. battery life: 10 years on CR2016