Casio Men's G-Shock GD-100-1A Black Digital Sport Watch Introducing a collection of new G-SHOCK digital models whose big faces and cases give them a look of power and strength. A high-intensity LED makes the digital easier to read, even in the dark. A choice of either dark-on-light or light-on-dark LCD is available, both with a black case and band. Over-sized buttons come with a checkered anti-slip surface to make operations fast and sure. All of this plus high shock resistance and water resistance makes these G-SHOCK models the perfect choice for casual wear just about everywhere.