Casio Pro Trek PRG-340 watch, bio-based resin, PRG-340-3ER

Casio Pro Trek PRG-340 Watch with Green Strap, Tough Solar, Compass and Altimeter

The Casio Pro Trek PRG-340-3ER is a solar-powered digital watch with an altimeter, barometer, digital compass and thermometer. The functions suit hikes and treks. Behind the mineral glass is an LCD display, and the bezel has the compass points and a scale for the compass. The case and strap are made of bio-based plastic. The case is 52 mm wide and 15 mm thick, and the watch weighs 54 g. The green strap fits wrists of 150-220 mm.

Tough Solar charges the watch with light, so the battery does not need to be replaced. The battery lasts about 7 months with normal use if the watch receives no light at all, and up to 27 months in power saving mode in complete darkness. Water resistance is 100 m / 10 atm, so the watch withstands swimming, water sports and snorkeling but is not suitable for scuba diving. The watch also has world time in 31 time zones, a stopwatch, a timer, five alarms and an LED backlight with afterglow.

Product number: PRG-340-3ER
Brand: Casio
Product category: Men's watches
Movement: Solar-powered (Tough Solar)
Features: Stopwatch / chronograph, digital display, alarm, world time, multifunction, calendar, perpetual
Crystal: Mineral glass
Case material: Plastic (bio-based plastic)
Case width: 52 mm
Case thickness: 15 mm
Weight: 54 g
Strap material: Polyurethane / plastic
Strap color: Green
Strap length (wrist circumference): 150-220 mm
Strap width (lug width): 23 mm
Dial color: LCD
Water resistance: 100 m / 10 atm
Shape: Round

Frequently asked questions

Does the watch need a battery?
No. The watch uses Tough Solar technology and is powered by light. The battery lasts about 7 months if the watch receives no light at all, and up to 27 months in power saving mode in complete darkness.

Can you swim or snorkel with the watch?
Water resistance is 100 m / 10 atm, so the watch is suitable for swimming, water sports and snorkeling. It is not suitable for scuba diving. Do not use the buttons underwater or while the watch is wet.

How big is the watch and whose wrist does the strap fit?
The case is 52 mm wide and 15 mm thick, and the watch weighs 54 g. The strap fits wrists of 150-220 mm.

What functions does the watch have?
The watch has an altimeter, barometer, digital compass, thermometer, world time, stopwatch, timer and five alarms.