Conquering the toughest extremes is easier with the black G-SHOCK GPRH1000-1 watch. Part of the Master of G collection, the Rangeman watches have withstood the harshest conditions since 2013. Built to withstand all types of climates and environments, the durability of this G-SHOCK watch is just the beginning. Loaded with a ton of features such as GPS, heart rate monitor, an altimeter and barometer, the bevy of biometric and environmental data the GPRH1000-1 provides will keep you in the know no matter where on the planet your adventure takes you.