Where to Buy
Here's what other sites are saying:
The solar-powered, triple-sensor Casio ProTrek PRG550-1A1CR multifunction watch sports easy-to-use features, including a digital compass, altimeter, barometer and thermometer.
Don't be fooled by the classic analog look of the Casio Pro Trek PRG550-1A1 Altimeter Watch; behind that pretty face lurks an altimeter, compass, barometer, thermometer, and full-featured watch. As rugged as it is feature-packed, this new member of the Triple Sensor family runs on Tough Solar Power technology that recharges every time you take it out into the light.