CASIO AMW870A-3A

Case size (L× W× H)51.5 × 44 × 12.3 mm Weight96 g Case and bezel materialStainless steel BandResin Band Water resistance50-meter water resistance Power supply and battery lifeApprox. battery life: 10 years on CR2025 Exterior GlassMineral Glass Compatible band size145 to 215 mm Watch Features World time29 time zones (30 cities), daylight saving on/off Stopwatch1/100-second stopwatchMeasuring capacity: 23:59'59.99''Measuring modes: Elapsed time, split time, 1st-2nd place times TimerCountdown timerMeasuring unit: 1 secondCountdown range: 24 hoursCountdown start time setting range: 1 minute to 24 hours (1-minute increments and 1-hour increments) Alarm/hourly time signal3 daily alarms (with 1 snooze alarm)Hourly time signal LightLED lightAfterglow Light colourLED:Amber CalendarFull auto-calendar (to year 2099) AccuracyAccuracy: ±30 seconds per month Other features12/24-hour format TelememoMemory capacity: Up to 30 sets of data, with 8-character name and 16-digit telephone number Others: Remaining memory screen, auto-sort Regular timekeeping:Analog: 2 hands (hour, minute (hands move every 20 seconds))Digital: Hour, minute, second, am/pm, month, date, day