battery life 2 years on CR1220Size of case / total weight: 55.0 X 51.2 X 16.9 mm / 70 g
9)Mach indicator (speed exceeding 1225 units / hour)Countdown timerMeasuring unit 1 secondInput range 1 minute to 24 hours (1-minute increments and 1-hour increments)Other Auto-repeatDaily alarms5 independent daily alarms (4 one-time alarms and 1 snooze alarm)Hourly time signalFull auto-calendar (to year 2099)12/24-hour formatRegular timekeepingAnalog 2 hands (hour, minute (hand moves every 20 seconds)Digital Hour, minute, second, pm, month, date, dayAccuracy ±15 seconds per monthApprox. Casio G-Shock World Time Alarm GA-100-1A2 GA-100 Men's Watch.0 to 99.