Introducing the G-Shock Oversize collection, a series combining a large dial and case evoking power and strength. Dial rings and raised hour markers create three-dimensional character while over-sized buttons come with a textured anti-slip surface to make operations fast and sure. These watches are designed and engineered to deliver outstanding shock resistance as well as anti-magnetism. Accuracy +/- 15 seconds per month Alarm Function Automatic calendar with Date, Day and Month Once set, the automatic calendar always displays the correct date. Average Speed Display A dial on the watch displays your average speed travelled over a set distance Countdown Timer Date & Weekday Display Display Illumination Auto Light: The watch dial will illuminate automatically when you tilt your wrist towards you. Once activated, this feature will automatically deactivate after six hours. LED light selectable illumination duration (1.5 seconds or 3 seconds) Low Temperature Resi