Tough Solar Power. Multi-Band 5 Atomic Timekeeping. 1/100th Second, 1,000 Hour Stopwatch. 200 meters (660 feet) water resistant. Auto EL Backlight with Afterglow. World Time - 29 times zones (48 cities), city code display, daylight saving on/off. 5 Daily Alarms (1 with snooze). Countdown Timer - Measuring unit: 1/10 second, Countdown range: 1 minute to 60 minutes. 1/100 second stopwatch. Hourly Time Signal. Button Tone Operation On/Off. Auto Calendar (pre-programmed until the year 2099). 12/24 Hour Formats. Accuracy: +/- 15 seconds per month (with no signal calibration). Storage Battery. Battery Power Indicator. Power Saving Function.