Casio Pro Trek PRG-340 Solar Watch

Developed for nature lovers and hikers, this Pro Trek pairs solar power with a dual-layer display.

A duplex LCD separates the compass graphics from the time functions, allowing a larger, easier-to-read compass display. The rotating bezel makes it simple to hold a bearing while out on the trail.

Technology of the triple-sensor equipment

Functions at a glance

• Altimeter, barometer, thermometer and digital compass
• Solar charging with roughly 7 months of runtime in active use
• Sunrise and sunset data
• World time for 48 cities plus UTC
• Water resistant to 100 metres

Materials and care

Case and band biomass plastic made from castor oil and corn. Glass hardened mineral.