The PRW3500-1 is the perfect watch for the outdoorsmen coming equipped with a compass, altimeter, and barometer. | Casio protrek, Protrek, Watch design
Casio Pro Trek PRW-3500 Watches For 2015 Hands-On | aBlogtoWatch
Casio Pro Trek PRW-3500 Watches For 2015 Hands-On | aBlogtoWatch
Amazon.com: Casio Protrek Tough-Solar PRW3500-1 Multi-Band 6 Triple Sens
Casio Men's PRO TREK Digital Solar Watch - PRW3500-1CR