Casio G-Shock Analog Digital GA-100MB-1A Men's WatchCasio G Shock Analog Digital GA 100MB 1A Men's Watch This new basic black addition in the Big Case Series features touches of bright colours and vivid accents against the dark, matte background. Here, its green on matte black, a combination thats too hard to miss. It highlights the cool, tough image of the G Shock breed with a whole lot of features. The world time feature makes it an ideal watch to wear when youre travelling.