Thinner and smaller components combine with CASIO's original high-density mounting technology to create a timepiece that at 4.8 mm is 30 % slimmer and at 5 mm 10 % smaller across than previous models.*  *Comparison based on the PROTREK PRG-80; all values are approximate.

Introducing a new color variation for the PROTREK lineup of thin watches with Triple Sensor capabilities built in.

Introducing 200-meter water resistant Triple Sensor models with resister rings for the PROTREK lineup of real outdoor watches.

Casio Protrek Tide Graph Tough Solar Titanium Watch

From the mountains to the riverside or seaside, the 200-meter water resistance of this new addition to the PROTREK lineup of Solar Triple Sensor models allows it to be worn with confidence wherever the going gets tough.

PRG-240 is a great adventuring tool for the challenging outdoors. This is an addition to the ProTrek range which has the added benefit of being solar powered eliminating the need of batteries.

The new PRG-240 has all the same great Triple Sensor functionality you’ve come to love in its predecessor, but now it’s equipped with Self-Charging, Tough Solar Power, employs more functional exterior case design, has a host of additional features such as Sunrise Sunset Data, Countdown Timer and 48-city World Time.

Introducing new PRO TREK high-performance outdoor watch for various environments including mountain and ocean. It not only offers the compass bearing and altitude features necessary for mountain climbing, but also strong water-resistance for river climbing and river rafting where the user may encounter strong water pressure, as well as convenient tide...

Introducing new PRO TREK high-performance outdoor watch for various environments including mountain and ocean.

The simple design of the face makes measurement data easy to read, and a Tough Solar power system helps to ensure uninterrupted operation.  • Tough Solar • Triple Sensor: Compass, Barometer/Thermometer, Altimeter • Low temperature resistant (–10ºC/14°F)

The simple design of the face makes measurement data easy to read, and a Tough Solar power system helps to ensure uninterrupted operation. • Tough Solar • Triple Sensor: Compass, Barometer/Thermometer, Altimeter • Low temperature resistant (–10ºC/14°F)

This model pack Twin Sensor temperature and direction readings into a 200-meter water resistant design that is perfect for sports, work, or other activities that involve water. In addition to world time, stopwatch, alarm and other basic timekeeping functions, this model also include a direction sensor and temperature sensor. Direction readings and time...

Introducing SPORTS GEAR, the watch designed to support the daily training routines of runners. SPORTS GEAR watches support your training efforts by counting your steps while running, and calculating the distance you covered and the calories you burned.

Introducing new outdoor watches with Twin Sensor capabilities that measure temperature and altitude/air pressure. A high-performance pressure sensor provides altitude readings up to 10,000 meters and automatic air pressure readings every two hours. Measurement results are displayed graphically, which can be used to predict upcoming weather with...

Introducing new outdoor watches with Twin Sensor capabilities that measure temperature and altitude/air pressure. A high-performance pressure sensor provides altitude readings up to 10,000 meters and automatic air pressure readings every two hours. Measurement results are displayed graphically, which can be used to predict upcoming weather with...