PRW6630NA-1A3 | PRO TREK PRW-6600 Series Black | CASIO (2024)

Case size (L× W× H)

51.6 × 51.5 × 14.6 mm

Weight

59 g

Case and 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℉)

Power supply and battery life

Tough Solar (Solar powered)

Sensor feature

Digital compassMeasures and displays direction as one of 16 pointsMeasuring range: 0 to 359°Measuring unit: 1°60 seconds continuous measurementHand indication of northBidirectional calibrationMagnetic declination correction

AltimeterMeasuring range: -700 to 10,000 m ( -2,300 to 32,800 ft.)Measuring unit: 1 m (5 ft.)Hand indication of altitude differentialManual 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)

BarometerDisplay range: 260 to 1,100 hPa (7.65 to 32.45 inHg)Display unit: 1 hPa (0.05 inHg)Hand indication of pressure differentialAtmospheric pressure tendency graphBarometric pressure tendency information alarm (beep and arrow indicates significant changes in pressure)*Changeover between hPa and inHg

ThermometerDisplay 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

Gray ion plated bezel

Other

Neobrite

World time

World time29 time zones (29 cities + universal coordinated time),One-touch UTC Time Zone Access, daylight saving on/off, Home city/World time city swapping

Stopwatch

1/100-second stopwatchMeasuring capacity: 23:59'59.99''Measuring modes: Elapsed time, split time, 1st-2nd place times

Timer

Countdown timerMeasuring unit: 1 secondCountdown range: 60 minutesCountdown start time setting range: 1 second to 60 minutes (1-second increments, 1-minute increments)

Alarm/hourly time signal

5 daily alarms

Hourly time signal

Light

Double LED lightLED light for the face (Full auto LED light, selectable illumination duration, afterglow)LED backlight for the digital display (Full auto LED light, selectable illumination duration, afterglow)

Light color

LED:White

Calendar

Full auto-calendar (to year 2099)

Mute feature

Button operation tone on/off

Hand home position correction feature

The auto hand home position correction

Energy saving feature

Power Saving (display goes blank and hands stop to save power when the watch is left in the dark)

Battery display/alert

Battery level indicator

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

Hand shift feature (manual or auto (during altitude, barometric pressure, and temperature measurement))

12/24-hour format

Regular timekeeping:Analog: 3 hands (hour, minute (hand moves every 10 seconds), second)Digital: Hour, minute, second, am/pm, date, day

Time adjustment details

Time calibration signal receptionAuto 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 signalManual receiveThe latest signal reception results

Time Calibration SignalsStation name: DCF77 (Mainflingen, Germany)Frequency: 77.5 kHzStation name: MSF (Anthorn, England)Frequency: 60.0 kHzStation name: WWVB (Fort Collins, United States)Frequency: 60.0 kHzStation name: JJY (f*ckushima, f*ckuoka/Saga, Japan)Frequency: 40.0 kHz (f*ckushima) / 60.0 kHz (f*ckuoka/Saga)Station name: BPC (Shangqiu City, Henan Province, China)Frequency: 68.5 kHz

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