At A Glance For the first time ever, the G-Lide series of G-Shock watches introduces the 6900 case into the line-up. Like all G-Lide, this new model is packed with Tide Graph and Moon Phase functions that are essential for surfing and other marine sports. And now it is available in the most p...　　 [More] Tags: Water resistant watches    Shock Resistant    G-Shock watches