Casio Pro Trek PRG-340T-7ER

Venture into the great outdoors with a solar-powered TREKKING PRO featuring eco-friendly materials that respect the environment. The PRO TREK line of authentic outdoor watches for nature lovers introduces the PRG-340, a model that incorporates low-impact biomass plastics*, while maintaining the same wrist comfort. The urethane case and band are made from biomass plastic with castor oil, while the biomass plastic band is made from corn. The duplex LCD display features separate layers for compass graphics and watch functions with a larger compass display for improved readability and easier navigation in a beautiful and functional design. The rotating bezel simplifies recording compass values, while the Tough Solar system maintains advanced functionality on the go. Get out and explore with less environmental impact! * Biomass plastics are polymers produced using chemical or biological synthesis of materials derived from plant matter or other renewable organic substances and are widely understood to contribute to reducing environmental impact and promoting a shift towards a circular economy.

Case size (L × W × H): 54.7 × 51.7 × 15.1 mm
Weight: 87 g

Case and bezel material: Bio-based resin
Strap: Titanium with stainless steel clasp and one-touch 3-fold closure
Adjustable strap: 150 to 205 mm
Water resistance: 10 bar
Low temperature resistance: Down to -10 °C / 14 °F

Power supply: Solar power

Altimeter: -700 to 10,000 m (-2,300 / 32,800 ft), 1 m (5 ft) unit, manual memory up to 30 records with altitude/date/time, automatic max/min altitude data, cumulative ascent and descent, route data up to 14 records, relative altitude from -3,000 to 3,000 m, measurement intervals of 5 seconds or 2 minutes

Barometer: 260 to 1,100 hPa (7.65–32.45 inHg), pressure trend graph for the last 42 hours, pressure differential graph, atmospheric pressure change alarms

Digital compass: 16 directions, 0°–359° measurement with 1° accuracy, 60-second continuous measurement, graphic pointer, bidirectional calibration, magnetic declination correction, direction memory

Thermometer: -10 °C to 60 °C (14–140 °F), 0.1 °C / 0.2 °F accuracy

Glass: Mineral
Bezel: Directional

World time: 31 time zones (48 cities + UTC) with daylight saving time on/off

Sunrise / sunset: Sunrise and sunset display for specific dates

Stopwatch: Tenths of a second with capacity up to 999:59'59.9'', elapsed time, split time, 1st and 2nd place times modes

Countdown timer: Up to 24 hours with 1-minute and 1-hour increments

Alarms / hourly time signal: 5 daily alarms (1 snooze) and hourly time signal

Illumination: Fully automatic Super Illuminator LED with selectable duration (1.5 or 3 seconds) and afterglow
Light color: White

Calendar: Full auto-calendar up to 2099

Mute function: Button operation tone on/off

Power saving: Automatic display off in the dark

Battery indicator: Battery level indicator

Battery life: Approx. 7 months without light exposure after full charge, up to 27 months with power saving active

Accuracy: ±15 seconds per month

Other functions: 12/24-hour format, full time, minute, second, PM, month, date, and day display

Display: Duplex LC