Casio Protrek

Model: CASIO PRO TREK PRW-6000Y-1A Performance 10 bar water resistance, low-temperature resistance (-10°C / 14°F) Radio Wave Reception Automatic reception up to six times a day. So the time is always correct. Even moving across time zones it resets the time. This is not Bluetooth it is a Wave Ceptor. Digital Compass Barometer: Detector of air pressure Altimeter: Know your distance above or below sea level. Barometer: Thermometer: By using any or all of the above when hiking for example you will never be lost. All of the above are only some of the features that this watch has to offer. (See the full specifications below. Radio 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) Radio Wave Reception Automatic reception up to six times a day (except for use in China: up to five times a day); manual reception Digital Compass Measures and displays direction as one of 16 points with the second hand; measuring range: 0° to 359°; measuring unit: 1°; 60 seconds continuous measurement; bidirectional calibration and magnetic declination correction Barometer Measuring range: 260hPa to 1,100 hPa (7.65inHg to 32.45 inHg); measuring unit: 1 hPa (0.05 inHg); atmospheric pressure change indicator (±10hPa); atmospheric pressure tendency graph (past 20 hours graph display); barometric pressure tendency information (arrow indicates significant pressure changes) Altimeter Measuring range: -700m 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 (±100m / ±1000 m); other: relative altitude readings (-3,000m to 3,000 m); measurement interval setting* (every 5 seconds / every 2 minutes) * 1 second for first 3 minutes only Thermometer Measuring range: -10°C to 60°C (14°F to 140°F); measuring unit: 0.1°C (0.2°F) 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 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:1.5/3.0 seconds; Hand-concealment function (manual, auto: barometer /altimeter / thermometer function) Power Source Tough Solar power system (high-capacity solar-charging system) Continuous Operation: About 23 months with the power-saving function ON after full charge Display shuts off after a certain period in a dark location Size of Case: 57.9 × 52.1 × 12.8 mm Total Weight : Approx. 73g