Casio Pro Trek PRG-240-3ER

The Casio Pro Trek PRG-240-3ER outdoor watch uses Casio Tough Solar technology, which means it is powered by sunlight, so there is no need to change batteries. The Pro Trek PRG-240-3ER has a 50.9 mm wide and 15.3 mm thick case and bracelet made of polyurethane. The watch weighs 66 grams. Mineral glass protects the dial. The watch is packed full of versatile features, which are listed below.

Key features

• LED backlight
• Anti-freeze protection (-10 degrees max)
• Thermometer (-10 to +60 degrees)
• Altimeter
• Altimeter data memory
• Barometer
• Digital compass
• Total altimeter
• Sunrise and sunset indicator
• World time
• Timekeeping
• Timer
• Equinox signal
• 5 alarms
• Perpetual calendar
• 12/24h display