Casio Pro Trek PRG-340-3 Solar Powered Men's Watch

The Casio Pro Trek PRG-340-3 Solar Powered Men's Watch is a perfect companion for outdoor enthusiasts who value eco-conscious design and functionality. Crafted from environmentally friendly biomass plastics, the 51.7mm case and soft urethane band are made using castor oil and corn-based materials, reducing environmental impact. The grey dial is protected by mineral glass, while the black directional rotating bezel enhances navigation with easy-to-read compass graphics, thanks to a duplex LCD. Its robust features include low-temperature resistance down to -10°C, 100 meters of water resistance, and a solar-powered Tough Solar charging system, ensuring reliable performance in the wild. This 54g watch, with a dark green band and a comfortable fit, embodies sustainability and outdoor durability, backed by a 2-year watch zone warranty.

Sensor feature

Altimeter

Measuring range: -700 to 10,000 m (-2,300 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, auto cumulative ascent and descent)

Trek log data (up to 14 records of high/low altitudes, auto cumulative ascent and descent of particular treks)

Others: Relative altitude readings (-3,000 to 3,000 m), 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)

Atmospheric pressure tendency graph (Past 42 hours of readings)

Atmospheric pressure differential graphic

Barometric pressure tendency information alarm (beep and arrow indicate significant changes in pressure)

*Changeover between hPa and inHg

Digital compass

Measures and displays direction as one of 16 points

Measuring range: 0 to 359°

Measuring unit: 1°

60 seconds continuous measurement

Graphic direction pointer

Bidirectional calibration

Magnetic declination correction

Bearing memory

Thermometer

Display range: -10 to 60℃ (14 to 140℉)

Display unit: 0.1℃ (0.2℉)

*Changeover between Celsius (℃) and Fahrenheit (℉)

Watch Features

World time

31 time zones (48 cities + coordinated universal time), daylight saving on/off

Sunrise/sunset display

Sunrise, sunset time display Sunrise time and sunset time for specific date

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 (with 1 snooze alarm)

Hourly time signal

Light

LED backlight (Super Illuminator) Full auto LED light, selectable illumination duration (1.5 seconds or 3 seconds), afterglow

Light color

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

Run time

Approx. battery operating time: 7 months on rechargeable battery (operation period with normal use without exposure to light after charge)

27 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

Other features

12/24-hour format

Regular timekeeping: Hour, minute, second, pm, month, date, day

Duplex LC display