Casio PRG340B-3 | PRO TREK PRG-340 Series Black

Tough casual-cool outdoor gear for nature lovers eager to get off the beaten path! Introducing the PRG-340B, a solar-powered PRO TREK with key components made of bio-based resin, a material expected to help reduce environmental impact. Packed with advanced features and total practicality, this PRO TREK is ready for every outdoor setting. The Triple Sensor delivers compass bearing, barometric pressure, altitude, and temperature readings, and the Tough Solar system keeps you charged. The watch features key components made with bio-based resin and a cloth band made of CASTLON®, treated with a flame retardant finish. CASTLON is a 100% plant-derived Nylon 11 fiber produced using castor oil plants. This carbon-neutral material not only helps reduce environmental impact, but is also stronger and lighter with better wear resistance, chemical resistance, and flexibility at low temperatures than the conventional Nylon 6. Note: CASTLON® is a registered trademark of Unitika Ltd.

Case size (L× W× H):54.7 × 51.7 × 15.1 mm
Weight:55 g
Case and bezel material:Resin / Bio-based resin
Water resistance:100-meter water resistance
Environmental resistance:Low-temperature resistant (-10℃/14℉)
Power supply and battery life:Solar powered
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 (℉)

Glass:Mineral Glass
Bezel features:Direction Bezel
Compatible band size:145 to 215 mm

World time: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: 999:59.9\u0027\u0027
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