Casio Protrek Tough Solar Digital Compass Watch PRG-250B-3 PRG250B Atmospheric pressure tendency graph Atmospheric pressure differential graphic Mineral Glass Direction Bezel 200-meter water resistance Case / bezel material: Resin / Aluminum Leather/Cloth Bands Electro-luminescent backlight Full auto EL light, selectable illumination duration, afterglow Solar powered Low-temperature resistant (-10°C/14°F) Digital compass Measures and displays direction as one of 16 points Measuring range: 0° to 359° Measuring unit: 1° 20 seconds continuous measurement Graphic direction pointer Bidirectional calibration and northerly calibration function Magnetic declination correction Bearing memory Altimeter Measuring range: -700 to 10,000 m (-2,300 to 32,800 ft.) Measuring unit: 5 m (20 ft.) Manual memory measurements (up to 14 records, each including altitude, date, time) High Altitude / Low Altitude memory Total Ascent / Descent memory Others: Reference altitude setting, altitude differential *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) *Changeover between hPa and inHg Barometric pressure change indicator Thermometer Display range: -10 to 60°C (14 to 140°F) Display unit: 0.1°C (0.2°F) *Changeover between Celsius (°C) and Fahrenheit (°F) Moon data (moon age of the specific date, moon phase graph) Tide graph (tide level for specific date and time) Duplex LC display World time 31 time zones (48 cities + coordinated universal time), city code display, daylight saving on/off 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 Countdown start time setting range: 1 to 60 minutes (1-minute increments) Reset time: 5 minutes Others: Time up alarm, progress beeper Daily alarms 5 independent daily alarms 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: 6 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) Size of case/total weight: 56.3 X 50.6 X 15 mm/71 g EL:Blue Green
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