Construction Shock-resistant; vibration-resistant u30fbPerformance 200-meter water resistance, low-temperature resistance (-10u00b0C / 14u00b0F) u30fbRadio Frequencies 77.5 kHz (DCF77: Germany); 60 kHz (MSF: UK); 60 kHz (WWVB: USA); 40 kHz (JJY: Fukushima, Japan) / 60 kHz (JJY: Kyushu, Japan); 68.5 kHz (BPC: China)
Countdown Timer Measuring unit: 1 second (maximum 60 minutes) Alarm 5 independent daily alarms; hourly time signal Other Functions Full auto-calendar; 12/24-hour format; battery level indicator; button operation tone on/off; full auto double LED backlight with afterglow: 1.5 or 3.0 seconds; hand-concealment function (manual, auto: barometer / altimeter / thermometer function)
Power Source Tough Solar power system (high-capacity solar-charging system)
Radio Wave Reception Automatic reception up to six times a day (except for use in China: up to five times a day); manual reception u30fbDigital Compass Measures and displays direction as one of 16 points with the second hand; measuring range: 0u00b0 to 359u00b0; measuring unit: 1u00b0; 60 seconds continuous measurement; bidirectional calibration and magnetic declination correction u30fbBarometer Measuring range: 260 hPa to 1,100 hPa (7.65 inHg to 32.45 inHg); measuring unit: 1 hPa (0.05 inHg); atmospheric pressure change indicator (u00b110 hPa); barometric pressure tendency graph (past 20 hours graph display); barometric pressure tendency information (arrow indicates significant pressure changes)
Altimeter Measuring range: -700 m to 10,000 m (-2,300 ft 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, cumulative ascent and descent of particular treks); altitude change indicator (u00b1100 m / u00b11000 m); other: relative altitude readings (-3,000 m to 3,000 m); measurement interval setting*3 (every 5 seconds / every 2 minutes) *3 second for first 3 minutes only Thermometer Measuring range: -10u00b0C to 60u00b0C (14u00b0F to 140u00b0F); measuring unit: 0.1u00b0C (0.2u00b0F) World Time 29 cities (29 time zones; daylight saving on/off, Home city/World time city swapping) and Coordinated Universal Time, auto switching / standard time and Coordinated Universal Time Stopwatch 1/100 second; measuring capacity: 24 hours; measuring modes: elapsed time, split time, 1st and 2nd place times