TECHNICAL SPECIFICATIONS: * Tough Solar Power * Shock Resistant * 200M Water Resistant * Full Auto EL Backlight with Afterglow * World Time 31 time zones (48 cities + UTC), city code display, daylight saving on/off * 4 Daily Alarms & 1 Snooze Alarm * Hourly Time Signal * 1/100 Second Stopwatch Measuring capacity: 23:59’59.99” Measuring modes: Elapsed time, split time, 1st-2nd place times * Countdown Timer Measuring unit: 1 second Input range: 1 minute to 24 hours (1-minute increments and 1-hour increments) * Full auto-calendar (pre-programmed until the year 2099) * 12/24 Hour Formats * Button operation tone on/off * Accuracy: +/-15 seconds per month * Storage Battery: Solar Rechargeable Battery * Battery Power Indicator * Power Saving Function * Approx. battery life: 10 months on full charge (without further exposure to light) * Module 3180