Casio Men's Multi Band Atomic Solar G Shock Watch #GW5600BJ-1 Multi-Band Atomic Timekeeping (US, Japan), Tough Solar Power, Shock Resistant 200M Water Resistant, Auto EL Backlight with Afterglow, World Time 4 Daily Alarms & 1 Snooze Alarm, Countdown Timer,1/100 second stopwatch Hourly Time Signal, Auto Calendar (pre-programmed until the year 2099), 12/24 Hour Formats, Accuracy: 15 seconds per month (with no signal calibration) Storage Battery CTL1616, Battery Power Indicator, Power Saving Function, Approx. battery life: 8 months on full charge (without further exposure to light),Module 2924, Size of case/total weight: 48.9 x 42.8 x 13.4mm / 54g