Multi-Band 5 Atomic Timekeeping and Tough Solar Power for the ultimate in perfect precision timekeeping. The Atomic Solar Ana-Digis from G-Shock also feature 48-city World Time, LED light, and Countdown Timer. Multi-Band Atomic Timekeeping (US, UK, Germany, Japan) - Receives time calibration radio signals which keep the displayed time accurate - Auto receive function (6 times per day) - Manual receive function - Signal: US WWVB, UK MSF, Germany DCF77, Japan JJY40/JJY60 - Frequency: US 60kHz, UK 60kHz, Germany 77.5kHz, Japan 40/60kHz - Tough Solar Power - Shock Resistant - 200M Water Resistant - LED Light with Afterglow - World Time - 29 times zones (48 cities), city code display, daylight saving on/off - Daily Alarm - Countdown Timer Measuring unit: 1 second - Countdown range: 1 minute to 60 minutes - 1/100 second stopwatch - Measuring capacity: 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: 7 months on full charge (without further exposure to light) - Module 4765 - Size of case/total weight 52.0 x 46.4 x 14.9mm / 54.3g