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Professional Brazilian Jiu Jitsu grappler Gordon Ryan was seen wearing a black G-Shock Gravity Master watch. It turns out that Ryan is a big fan of the G-shock model. This watch is solar-powered, and sets the time automatically no matter where you are based on wave receptor technology.
It is also incredibly durable, and is built to resist freezing temperatures. As seen, this is the ideal watch for Ryan who endures grueling workouts.
Check The Price Of The Casio G-Shock Gravity Master On Amazon
