Protrek Duo 黑色树脂表带手表

Case size (L× W× H): 49.6 × 44.8 × 14.7 mm

Weight: 65 g

Case and bezel material: Case / bezel material: Bio-based resin / Stainless steel

Band: Soft urethane band (Bio-based resin)

Water resistance: 100-meter water resistance

Environmental resistance: Low-temperature resistant (-10℃/14℉)

Time adjustment: Radio-controlled Watch; Multi band 6

Power supply and battery life: Tough Solar (Solar powered)

Sensor Feature:
Digital compass
Measures and displays direction as one of 16 points
Measuring range: 0 to 359°
Measuring unit: 1°
60 seconds continuous measurement
Hand indication of north
Bidirectional calibration
Magnetic declination correction
Altimeter
Measuring range: -700 to 10,000 m ( -2,300 to 32,800 ft.)
Measuring unit: 1 m (5 ft.)
Hand indication of altitude differential
Manual memory measurements (up to 30 records, each including altitude, date, time)
Auto log data (High/low altitudes, cumulative ascent and descent)
Others: Relative altitude readings (±100m /±1000m),
Selectable measurement interval: 5 seconds or 2 minutes
*1 second for first 3 minutes only
*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
Barometric pressure tendency information alarm (beep and arrow indicates significant changes in pressure)
*Changeover between hPa and inHg
Thermometer
Display range: -10 to 60℃ (14 to 140℉)
Display unit: 0.1℃ (0.2℉)
*Changeover between Celsius (℃) and Fahrenheit (℉) 

Glass: Mineral Glass

Crown: Screw lock crown

Surface treatment: Black ion plated

Compatible band size: 145 to 215 mm

World time: 29 time zones (29 cities + coordinated universal time), One-touch UTC Time Zone Access, daylight saving on/off, Home city/World time city swapping

Stopwatch:
1/10-second stopwatch
Measuring capacity: 999:59'59.9''
Measuring modes: Elapsed time, split time, 1st-2nd place times

Timer:
Countdown timer
Measuring unit: 1 second
Countdown range: 24 hours
Countdown start time setting range: 1 minute to 24 hours (1-minute increments and 1-hour increments)

Alarm/hourly time signal:
5 daily alarms
Hourly time signal

Light:
Double LED light LED light for the face (Full auto LED light, Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow) LED backlight for the digital display (Full auto LED light, Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow)

Light colour: LED: White

Calendar: Full auto-calendar (to year 2099)

Mute feature: Button operation tone on/off

Energy saving feature: Power Saving (display goes blank to save power when the watch is left in the dark)

Battery display/alert: Battery level indicator

Hand home position correction feature: The auto hand home position correction

Run time:
Approx. battery operating time:
6 months on rechargeable battery (operation period with normal use without exposure to light after charge)
25 months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge)

Accuracy: Accuracy: ±15 seconds per month (with no signal calibration)

Other features:
12/24-hour format
Regular timekeeping: Analog: 3 hands (hour, minute (hand moves every 10 seconds), second) Digital: Hour, minute, second, am/pm, month, date, day

Time adjustment details (Not available in NZ):
Time Calibration Signals
Station name: DCF77 (Mainflingen, Germany)
Frequency: 77.5 kHz
Station name: MSF (Anthorn, England)
Frequency: 60.0 kHz
Station name: WWVB (Fort Collins, United States)
Frequency: 60.0 kHz
Station name: JJY (Fukushima, Fukuoka/Saga, Japan)
Frequency: 40.0 kHz (Fukushima) / 60.0 kHz (Fukuoka/Saga)
Station name: BPC (Shangqiu City, Henan Province, China)
Frequency: 68.5 kHz
Time calibration signal reception
Auto receive up to six* times a day (remaining auto receives canceled as soon as one is successful)
*5 times a day for the Chinese calibration signal
Manual receive
The latest signal reception results