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 resistant 10 °c 14°f magnetic resistance the case has been specially mounted to be shielded from magnetic fields. Neobrite a luminous coating on the watch hands provides illumination in the dark. Shock resistant patented hollow core guard structure protects against impact and vibration stopwatch vibration resistant resistant against vibration from heavy duty operations world time displays the current time in major cities and specific areas around the world total weight 70 g case width 51.2 mm case depth 16.9 mm watch movement quartz water resistance 200 metres