From PRO TREK, a brand of authentic outdoor gear for nature lovers, comes the PRG-340, a solar-powered model made with materials that are expected to contribute to reducing environmental impact.

Equipped with triple sensors (compass, atmospheric pressure/altitude, temperature measurement) and Tough Solar for outdoor activities
Biomass materials are used for the main parts, and the PRG-340B-3JF uses "CASTLON®", a nylon material made from 100% renewable organic resources, for the flame-retardant cloth band.

Castron is a nylon 11 made from castor oil and is a carbon-neutral material that helps reduce the environmental impact.

Compared to conventional nylon 6, it is stronger, lighter, more abrasion-resistant, more chemical-resistant, and more flexible at low temperatures.

The PRG-340L-5JF comes in a calm coyote brown color scheme.

The classic look with synthetic leather band matches not only outdoor scenes but also everyday outfits.

In addition, the band is flame-retardant, making it suitable for use in situations involving fire, such as cooking or campfires.

This model combines practicality with design.

Both models feature an easy-to-read duplex LC display, just like the base model PRG-340.
The two-layer LCD display improves visibility by showing the direction graphically on the upper LCD and the time and measurement values in large format on the lower LCD.

By adopting a thinner LCD, we have achieved high functionality while keeping the thickness down.

The PRG-340 solar-powered model uses materials that are expected to contribute to reducing environmental impact, making it a highly functional and practical model that can be used in a variety of outdoor situations.

* "CASTLON®" is a registered trademark of Unitika Ltd.

・ Tough Solar (solar charging system)
・Water resistant to 10 ATM ・World time: Time display for 48 cities (31 time zones, daylight saving time setting function) + UTC (Coordinated Universal Time) ・Orientation measurement function: Measures 16 directions and orientation angles (0 to 359°), continuous orientation measurement (60 seconds), graphic display of north, south, east and west, bearing memory (memorizes one graphic showing the orientation angle and recorded direction), magnetic declination correction function, orientation correction function ・Atmospheric pressure measurement function (measurement range: 260 to 1,100 hPa), atmospheric pressure trend graph display (displays the past 42 hours), atmospheric pressure difference graphic, atmospheric pressure trend information alarm (notifies you with an arrow and sound when a significant change in atmospheric pressure occurs)
Altitude measurement function/relative altimeter (measurement range: -700 to 10,000 m), altitude memory (manual memory for up to 30 records of measurement date, time, and altitude, automatic recording data: maximum/minimum altitude, auto-accumulation (ascent/descent) memory), 14 mountain climbing records (maximum/minimum altitude, auto-accumulation (ascent/descent) memory), altitude difference measurement (-3,000 to 3,000 m), measurement interval setting function (every 5 seconds/2 minutes)
* Every 1 second for the first 3 minutes only Temperature measurement function (measurement range: -10 to 60°C)
Duplex LC display Sunrise and sunset time display Stopwatch (1/10 sec, 1000 hour counter, with split)
・ Timer (set unit: 1 minute, maximum set: 24 hours, measured in 1 second units)
5 time alarms (1 with snooze alarm) Time signal Battery indicator Power saving function (display turns off after a certain period of time in the dark to save power)
- Fully automatic calendar - 12/24 hour display switching - Low temperature resistance (-10℃)
- Operation sound ON/OFF switching function - LED backlight (with full auto light, super illuminator, afterglow function, afterglow time switching (1.5 seconds/3 seconds))
・ Operating time from full charge without solar power generation When using functions: Approximately 7 months When in power saving mode: Approximately 27 months
* The altimeter is a relative altimeter that converts changes in air pressure into altitude.

If the air pressure changes due to weather conditions, the measured altitude will also change.
* When measuring the outside temperature, remove the watch from your wrist to prevent it from being affected by body heat, sweat (water droplets), direct sunlight, etc.

Model Number: PRG-340L-5JF


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Casio  wristwatch  Silver