CASIO Protrek Digital Watch - For Men SL105 (PRG-30-2DR)

Case / bezel material: Resin Silicon band Mineral Glass 100-meter water resistance Tough Solar (Solar powered) LED backlight (Super Illuminator) Full auto LED light, selectable illumination duration (1.5 seconds or 3 seconds), afterglow Low-temperature resistant (10C/14F) Digital compass Measures and displays direction as one of 16 points Measuring range: 0 to 359 Measuring unit: 1 60 seconds continuous measurement Graphic direction pointer Bidirectional calibration Magnetic declination correction Bearing memory Altimeter Measuring range: 700 to 10,000 m (2,300 to 32,800 ft.) Measuring unit: 1 m (5 ft.) Manual memory measurements (up to 30 records, each including altitude, date, time) Auto log data (High/low altitudes, auto cumulative ascent and descent) Trek log data (up to 14 records of high/low altitudes, auto cumulative ascent and descent of particular treks) Others: Relative altitude readings (3,000 to 3,000 m), Selectable measurement interval: 5 seconds or 2 minutes *1 second for first 3 minutes only *Changeover between meters (m) and feet (ft) Barometer Display range: 260 to 1,100 hPa (7.65 to 32.45 inHg) Display unit: 1 hPa (0.05 inHg) Atmospheric pressure tendency graph (Past 42 hours of readings) Atmospheric pressure differential graphic Barometric pressure tendency information alarm (beep and arrow indicate significant changes in pressure) *Changeover between hPa and inHg Thermometer Display range: 10 to 60C (14 to 140F) Display unit: 0.1C (0.2F) *Changeover between Celsius (C) and Fahrenheit (F) World time 31 time zones (48 cities + coordinated universal time), daylight saving on/off Sunrise, sunset time display Sunrise time and sunset time for specific date, daylight pointers 1/10-second stopwatch Measuring capacity: 999:59'59.9'' Measuring modes: Elapsed time, split time, 1st-2nd place times Countdown timer Measuring unit: 1 second Countdown range: 24 hours Countdown start time setting range: 1 minute to 24 hours (1-minute increments and 1-hour increments) 5 daily alarms (with 1 snooze alarm) Hourly time signal Battery level indicator Power Saving (display goes blank to save power when the watch is left in the dark) Full auto-calendar (to year 2099) 12/24-hour format Button operation tone on/off Regular timekeeping: Hour, minute, second, pm, year, month, date, day Accuracy: 15 seconds per month Approx. battery operating time: 8 months on Rechargeable Battery (Operation period with normal use without exposure to light after charge) 23 months on Rechargeable Battery (Operation period when stored in total darkness with the power save function on after full charge)