G-Shock Watches with GPS Timekeeping: For automatic time adjustment anywhere in the world
GWM Store - Introducing G-Shock Rangeman GPR-B1000-1B with GPS Navigation This new Rangeman has a lot to live up to as the original GW-9400 is the most popular Master of G watch
GPRB1000 Watches Collection | G-SHOCK | CASIO
Casio GPR-B1000 Rangeman Hands-on Review | Digital Trends
Casio Rangeman GPR-B1000: GPS and Navigation in Action - Time and Tours