Case / bezel material: Resin / AluminumOne-touch 3-fold ClaspStainless Steel BandResin Glass100-meter water resistanceLED light AfterglowAltimeter Measuring range: -700 to 10,000 m (-2,300 to 32,800 ft.) without reference altitude Measuring unit: 5 m (20 ft.) Others: Reference altitude setting *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 differential pointer *Changeover between hPa and inHgThermometer 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 31 time zones (48 cities), city code display, daylight saving on/off1/100-second stopwatch Measuring capacity: 23:59'59.99'' Measuring modes: Elapsed time, split time, 1st-2nd place timesCountdown timer Measuring unit: 1 second Countdown range: 24 hours Countdown start time setting range: 1 minute to 24 hours (1-hour increments and 1-minute increments)Daily alarms 5 independent daily alarmsHourly time signalFull auto-calendar (to year 2099)12/24-hour formatButton operation tone on/offRegular timekeeping: Hour, minute, second, pm, month, date, dayAccuracy: ±30 seconds per monthApprox. battery life: 3 years on CR2016 
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