Titanium Casio Protrek Triple Sensor Solar Watch PRG-510T-7 Imported Tough Solar Power, Tough Movement, Digital Compass, Altimeter Barometer, Thermometer, 100M Water Resistant, Low Temperature Resistant (-10 C / 14 F) Full Auto LED Light with Afterglow, World Time, 29 times zones (29 cities + UTC), city code display, daylight saving on/off,5 Daily Alarms Hourly Time Signal, 1/100 second stopwatch, Full Auto Calendar (pre-programmed until the year 2099), 12/24 Hour Formats, Button operation tone on/off Accuracy: +/-15 seconds per month (with no signal calibration), Battery Power Indicator, Power Saving Function, Storage Battery: Solar Rechargeable Battery, Approx. battery life: 5 months on full charge (without further exposure to light), Module 5113, Size of case/total weight: 56.8 x 49.3 x 14.3mm / 90g