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Casio PROTREK Triple Sensor Moon/Tide Graph PRG-250B-3
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Buy Casio PROTREK Triple Sensor Solar Moon Data Tide Graph Men's Watch PRG-250B-3 / PRG-250B-3DR (Made in Japan)

Introducing new PRO TREK high-performance outdoor watch for various environments including mountain and ocean. This watch not only offers the compass bearing and altitude features necessary for mountain climbing, but also strong water-resistance for river climbing and river rafting where the user may encounter strong water pressure, as well as convenient tide information for sea kayaking and fishing.


With a large display delivering outstanding readability, the PRG-250 has a dual-layer LCD construction. The sensor and other data are shown on the upper and lower LCDs, allowing the user to easily see the desired information.

In addition to being displayed numerical and in a trend graph, atmospheric pressure is shown using simply designed arrow icons which depict characteristic barometric pressure patterns. This function was developed under the supervision of a meteorologist. Consequently, an upward arrow is displayed when the atmospheric pressure suddenly rises, forecasting better weather ahead.


A downward arrow appears when the pressure suddenly falls, indicating weather deterioration.

There are also arrow icons to show when rising pressure changes to falling pressure, or vice versa, making it easy to ascertain weather changes.


• Tough Solar ensures stable operation even when using power-hungry functions.

• Triple Sensor: Compass, Barometer/Thermometer, Altimeter

• Low temperature resistant (–10ºC/14°F)


This watch come with 

  • Manual 

Brand: Casio G-Shock

Model: PRG-250B-3

UPC: 4971850962007


Condition: Brand New

Band Material:  Green leather / Cloth Bands (Authentic Camouflage pattern with photographic images of trees and foliage)

Case material: Resin

Bezel material: Aluminum

Water Resistant: 200 Meter (20 Bar)

Weight: 112g

Japan Movement: Solar Powered

Size: 56.3 x 50.6 x 15mm

Wrist Length: 155mm - 225mm (max)

Band Width: 20mm


·      Direction Bezel

·      Mineral Glass

·      Electro-luminescent backlight

Full auto EL light (Blue Green), selectable illumination duration, afterglow

·        Solar powered

·        Low-temperature resistant (-10°C/14°F)

·        Digital compass

Measures and displays direction as one of 16 points

Measuring range: 0 to 359°

Measuring unit: 1°

20 seconds continuous measurement

Graphic direction pointer

Bidirectional calibration and northerly calibration function

Magnetic declination correction

Bearing memory

·      Thermometer

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)

·        Altimeter

Measuring range: -700 to 10,000 m (-2,300 to 32,800 ft.)

Measuring unit: 5 m (20 ft.).

Manual memory measurements

(up to 25 records, each including altitude, month, date, time)

High Altitude Memory

Total Ascent / Decent memory

Others: Reference altitude setting, Altitude graph

*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 tendency graph

Atmospheric pressure differential graphic

*Changeover between hPa and inHg

·        Duplex LC display

·        World time

31 time zones (48 cities), city code display, daylight saving on/off

·        Moon data (moon age of the specific date, moon phase graph)

·        Tide graph (tide level for specific date and time)

·        1/100-second stopwatch

Measuring capacity: 23:59'59.99"

Measuring modes: Elapsed time, split time, 1st-2nd place times 

·        Countdown timer

Measuring unit: 1 second

Countdown range: 24 Hours

Starting ranges: Countdown start time (1 to 24 Hours, 1-minutes increments and 1-hour  increments)

·        Daily alarms

5 independent daily alarms

·        Hourly time signal

·        Battery power indicator

·        Power Saving Function  (display goes blank to save power when the watch is left in the dark)

·        Auto-calendar (to year 2099)

·        12/24-hour format

·        Button operation tone on/off

·        Regular timekeeping: Hour, minutes, seconds, pm, month, date, day

·        Accuracy: ±15 seconds per month

·        Approx. battery operating time: 6 months on Rechargeable Battery(Operating period with normal use without exposure to light after full charge)

23 months on Rechargeable Battery (Operating period when stored in total darkness with the Power Save function ON after full charge)


Additional details

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