Multi-Band Atomic Timekeeping (US UK Germany Japan China). Receives time calibration radio signals which keep the displayed time accurate. Auto receive function (up to 6 times per day). Tough Solar Power. Shock Resistant. 200M Water Resistant. Full Auto EL Backlight with Afterglow. World Time - 31 times zones (48 cities + UTC) city code display daylight saving on/off. 4 Daily alarms and 1 Snooze Alarm. Hourly time signal. 1/100 second stopwatch - Measuring capacity: 23:59:59.99. Countdown Timer. Full auto-calendar (pre-programmed until the year 2099). 12/24 hour formats.