Casio G-Shock Digital G-8900GB-1 G8900GB-1 200M Mens WatchCasio G Shock Digital G 8900GB 1 G8900GB 1 200M Men's Watch The large case, dynamically designed digital timepiece creates a distinctively cool look the way it has for almost 3 decades, setting the world standard or tough watches. Its another sure thing to be worn on your wrist, with an aluminium bezel providing for excellent shock resistance from all directions. It bridges the gap between the legendary 5600 and 6900 case styles.