Case / bezel material: ResinResin BandWater ResistantDual time8-digit calculator1/100-second stopwatchDaily alarmHourly time signalFull auto-calendar (to year 2099)12/24-hour formatRegular timekeeping: Hour, minute, second, am/pm, year, month, date, dayApprox. battery life: 5 years on CR2016Module: 3208Size of case : 43.2 × 34.4 × 8.2mmTotal weight : 25g