Atomic watch, receives time calibration radio signals which keep the displayed time accurate. Time calibration signal reception, auto receive function (one time per day at 1:00 am), manual receive function. World time, 29 time zones, 30 cities, daylight-saving time on/off. Date alert, display flashes when set date is reached. 1/100 second stopwatch, measuring capacity: 99:59'59.99', measuring modes: elapsed time, split/lap time, 1st-2nd place times. 4 daily alarms and 1 snooze alarm. Auto-calendar (pre-programmed until the year 2096). Approx. battery life: 2 years.