Casio Pro Trek PRW-3500 Watches For 2015 Hands-On | aBlogtoWatch
Casio Men's Watch Pro Trek Triple Sensor Digital Grey Dial Black Strap PRW3500-1 | eBay
Casio Pro Trek prw-3500. I climb and trim trees for a living, so I needed a tough, dependable solar watch that could tell me the temperature and altitude. Worth every penny, and