CA53W

Case / bezel material: ResinResin BandWater ResistantDual time8-digit calculator1/100-second stopwatch Measuring capacity: 23:59'59.99'' Measuring modes: Elapsed time, split time, 1st-2nd place timesDaily alarmHourly time signalFull auto-calendar (to year 2099)12/24-hour formatRegular timekeeping: Hour, minute, second, am/pm, year, month, date, dayAccuracy: ±15 seconds per monthApprox. battery life: 5 years on CR2016