I tried using RANGEMAN "GPR-B1000" which became the ultimate outdoor specification by adding GPS navi to G-SHOCK - GIGAZINE
Another cool #rangermonday wrist shot by my watch brother @watchbob .. The Rangeman GPR-B1000. It is Mud, Dust, Water, Shock and Low Temp resistant (–20°C). It …
Casio Rangeman GPR-B1000 - Watch for an Adventure - TechEngage
The Casio Rangeman GPR-B1000 is a big watch for big adventures | Wrist Watch Review