They say the rainforest holds many mysteries and clues, this rainforest inspired timepiece is the answer to the quest for perfect time. Atomic Timekeeping, Tough Solar power, 200M WR and 48-city world time. Atomic Timekeeping - Receives time calibration radio signals which keep the displayed time accurate - Auto receive function (3 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 - Countdown Timer - Measuring unit: 1/10 second - Countdown range: 1 minute to 60 minutes - 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 2913 - Size of case/total weight 51.3 x 46.0 x 15.0mm / 58g