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Casio Releases New PRO TREK Model equipped Direction Sensor and Thermo Sensor.

Twin sensor model, water resistant to 200 meters, with large easy-to-press button and highly readable register ring

  • July 28, 2014


TOKYO, July 28, 2014 — Casio Computer Co., Ltd. announced today the release of the PRG-280, a new model in its PRO TREK line of outdoor watches. The new watch is designed for those who enjoy all kinds of outside activities including hiking and water sports.

Equipped with advanced sensor technology developed by Casio, PRO TREK watches capture a variety of data on the surrounding environment. They have become popular not only with mountain climbing enthusiasts, but also with people who enjoy trail running, trekking, and camping.

In addition to twin sensors for compass bearing and temperature, the new PRG-280 features a large register ring useful for taking bearings. It is also water resistant to 200 meters for ocean and river activities. This outdoor watch is designed for all kinds of situations and environments.

The large compass button to the right of the face is easy to press, even when wearing gloves. With just one push, it continuously measures the compass direction for 20 seconds. The bearing memory function allows the user to record the current location and the direction to the destination. Even when visibility conditions are poor due to fog or other circumstances, and even at sea, the wearer can stay on course using the graphic digital display.

The new watch also features large index marks and lettering, with broad hour and minute hands, all combined on an over-sized watch face, to make the rich variety of information easy to read at a glance.



200-meter water resistance, low-temperature resistance (-10°C / 14°F)
Digital Compass
Measures and displays direction as one of 16 points with the second hand; measuring range: 0° to 359°; measuring unit: 1°; 20 seconds continuous measurement; graphic direction pointer; magnetic declination correction; bidirectional calibration and northerly calibration function
Measuring range: -10 to 60°C (14 to 140°F); measuring unit: 0.1°C (0.2°F)
World Time
48 cities (31 time zones; daylight saving on/off) and Coordinated Universal Time
1/100 second; measuring capacity: 24 hours; measuring modes: elapsed time, split time, 1st and 2nd place times
Countdown Timer
Measuring unit: 1 second (maximum 60 minutes)
5 independent daily alarms; hourly time signal
Other Functions
Full auto-calendar; 12/24-hour format; battery level indicator; button operation tone on/off; auto LED backlight (Super Illuminator) with afterglow (1.5/3.0 seconds)
Accuracy at Normal Temperature
±15 seconds per month
Battery Life
Approx. 2 years on SR927W × 2
Size of Case
Total Weight
Approx. 165g (PRG-280D)
Approx. 89g (PRG-280)