42 mm stainless steel case with anti-reflective sapphire dial window Japanese quartz movement with analog display Rose gold-tone band with foldover clasp with double push-button safety Water resistant to 200 m (660 ft): In general, suitable for professional marine activity and serious surface water sports, but not scuba diving When charged it gets to the 'low charge state', which is indicated by the Second hand moving every 2 seconds. While in this mode, the radio and other functions are automatically disabled. The other functions will become available once the watch charges at least to a level 1 charge. For initial charge (if the battery is completely drained) it could take 8-10 hours of bright light indoors or at least 1 hour of direct sunlight (not thru a window) to get enough of a charge to get the full functionality to work. Do not charge the watch at a high temperature (about 60°C/140°F or higher)