Casio Men's PRG260-1 Pro-Trek Watch with Black Band Imported Tough Solar Power, Digital Compass, Altimeter, Altimeter Memory, Barometer, Thermometer, Sunrise/Sunset Data Displays sunrise time and sunset time for a specific date, Daylight pointers, 200M Water Resistant, Low Temperature Resistant (-10 C / 14 F), Full Auto EL Backlight with Afterglow, Duplex LCD, World Time, 31 times zones (48 cities), city code display, daylight saving on/off, 5 Daily Alarms Hourly Time Signal, 1/100 second stopwatch, Countdown Timer, 12/24 Hour Formats, Full Auto Calendar (pre-programmed until the year 2099), Button operation tone on/off, Storage Battery: Solar Rechargeable Battery, Battery Power Indicator, Power Saving Function, Approx. battery life: 6 months on full charge (without further exposure to light), Module 3173