Casio - G-Shock - Atomic Timekeeping and Tough Solar Power - GW700A-1V - Featuring Atomic Timekeeping and Tough Solar Power. Also features Auto EL Backlight with Afterglow and World Time. Black resin band digital watch with black face - Atomic Timekeeping - Receives time calibration radio signals which keep the displayed time accurate - Auto receive function (4 times per day) - Manual receive function - Signal: WWVB, Frequency: 60kHz - Tough Solar Power - Shock Resistant - 200M Water Resistant - Auto EL Backlight with Afterglow - World Time: 29 times zones (30 cities), city code display, daylight saving on/off - 4 Daily Alarms & 1 Snooze Alarm - Time Recorder - Memory capacity: 30 records (each record contains month, day, hour, minutes, seconds) - 1/100 second stopwatch - Measuring capacity: 23:59'59.99" - Measuring modes: Elapsed time, split time, 1st-2nd place times - 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: 11 months on full charge (without further exposure to light) - Module 2818 - Size of case/total weight: 54.1 x 46.6 x 15.3mm / 67g