PRG550-1A4DR

Case / bezel material: ResinResin BandMineral GlassNeobrite100-meter water resistanceLED light Full auto LED light, afterglowSolar poweredLow-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 Hand indication of north Bidirectional calibration and northerly calibration function Magnetic declination correctionAltimeter Measuring range: -700 to 10,000 m (-2,300 to 32,800 ft.) Measuring unit: 5 m (20 ft.) Hand indication of altitude differential 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 tendency graph *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) Hand indication of pressure differential Atmospheric pressure tendency graph *Changeover between hPa and inHgBarometric pressure change indicatorThermometer 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)World time 29 time zones (29 cities + coordinated universal time), daylight saving on/off1/100-second stopwatch Measuring capacity: 59'59.99'' Measuring modes: Elapsed time, split time, 1st-2nd place timesCountdown timer Measuring unit: 1 second Countdown range: 60 minutes Countdown start time setting range: 1 to 60 minutes (1-minute increments)5 daily alarmsHourly time signalBattery level indicatorPower Saving (display goes blank and hands stop to save power when the watch is left in the dark)Full auto-calendar (to year 2099)12/24-hour formatButton operation tone on/offRegular timekeeping: Analog 3 hands: Hour, minute (moves every 10 seconds), second Digital: month, day, day of the weekAccuracy: ±15 seconds per monthApprox. 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)