Casio G-Shock Atomic Solar MTG Mens Watch MTG910DJ-2V Atomic Timekeeping, Tough Solar Power, Shock Resistant 200M Water Resistant, Auto EL Backlight with Afterglow, World Time 4 Daily Alarms & 1 Snooze Alarm, Time Recorder, 1/100 second stopwatch Hourly Time Signal, Auto Calendar (pre-programmed until the year 2039), 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: 11 months on full charge (without further exposure to light), Module 2638, Size of case/total weight: 54.8 x 45.0 x 17.0mm / 132g