Specifications LED backlight (Super Illuminator) Bearing memory World time Full auto-calendar (to year 2099) Full auto LED light, selectable illumination duration, afterglow Altimeter 31 time zones (48 cities + coordinated universal time), daylight saving on/off 12/24-hour format Solar powered Measuring range: x700 to 10,000 m (x2,300 to 32,800 ft.) Sunrise, sunset time display Button operation tone on/off Low-temperature resistant (x10 C/14xF) Measuring unit: 1 m (5 ft.) Sunrise time and sunset time for specific date, daylight pointers Regular timekeeping: Hour, minute, second, pm, year, month, date, day Time calibration signal reception Manual memory measurements (up to 30 records, each including altitude, date, time) 1/10-second stopwatch Accuracy: ±15 seconds per month (with no signal calibration) Auto receive up to six* times a day (remaining auto receives canceled as soon as one is successful) Auto log data (High/low altitudes, auto cumulative ascent and descent) Measuring capacity: 999:59'59.9'' Approx battery operating time: 5 times a day for the Chinese calibration signal Trek log data (up to 14 records of high/low altitudes, auto cumulative ascent and descent of particular treks) Measuring modes: Elapsed time, split time, 1st-2nd place times 7 months on rechargeable battery (operation period with normal use without exposure to light after charge) Manual receive Others: Relative altitude readings (x3,000 to 3,000 m), Selectable measurement interval: 5 seconds or 2 minutes Countdown timer 23 months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge) The latest signal reception results 1 second for first 3 minutes only Measuring unit: 1 second Time Calibration Signals Changeover between meters (m) and feet (ft) Countdown range: 24 hours Station name: DCF77 (Mainflingen, Germany) Frequency: 77.5 kHz Barometer Countdown start time setting range: 1 minute to 24 hours (1-minute increments and 1-hour increments) Station name: MSF (Anthorn, England)Frequency: 60.0 kHz Display range: 260 to 1,100 hPa (7.65 to 32.45 inHg) 5 daily alarms (with 1 snooze alarm) Station name: WWVB (Fort Collins, United States)Frequency: 60.0 kHz Display unit: 1 hPa (0.05 inHg) Hourly time signal Station name: JJY (Fukushima, Fukuoka/Saga, Japan) Atmospheric pressure tendency graph(past 42 hours of readings) Battery level indicator Frequency: 40.0 kHz (Fukushima) / 60.0 kHz (Fukuoka/Saga) Atmospheric pressure differential graphic Power Saving Station name: BPC (Shangqiu City, Henan Province, China)Frequency: 68.5 kHz Barometric pressure tendency information alarm (beep and arrow indicates significant changes in pressure) (display goes blank to save power - Digital compass Changeover between hPa and inHg hen the watch is left in the dark) Measures and displays direction as one of 16 points Thermometer Measuring range: 0 to 359x Display range: x10 to 60 C (14 to 140xF) Measuring unit: 1x Display unit: 0.1 C (0.2xF) 860 seconds continuous measurement Changeover between Celsius ( C) and Fahrenheit (xF) Graphic direction pointer Bidirectional calibration Magnetic declination correctionSize of case : 56x47x12.3mm Total weight : 62g 
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