Casio G-Shock Master of G Air GRAVITYMASTER GRB300-1A Bluetooth Mens Pilot WatchNot Just a Pilot Watch, a GRAVITYMASTER. G SHOCK GRB300 1A. Glancing at your G SHOCK GRAVITYMASTER pilot watch, you see you left your departure city an hour ago, and the dual time indicates your arrival city is five hours ahead plenty of time to work through your next maneuver. The large numerals 6 and 12 and the 3 D indices on the face of the G SHOCK GRB300 1A pilot watch were designed for quick readability, making the glance you gave your watch all