CASIO G-SHOCK MRG-B5000BA-1JR MRG-B5000BA-1 Solar?20 bar watchABOUT THIS BRAND ELEGANCE AND TECHNOLOGY G Shock is a line of watches manufactured by Japanese electronics company Casio, designed to resist mechanical shock and vibration. G Shock is an abbreviation for Gravitational Shock. The watches in the G Shock line are designed primarily for sports, military, and outdoors oriented activities; nearly all G shocks are digital or a combination of analog and digital and have a stopwatch feature, countdown timer,