Submariner SS: * Automatic movement. * Hack mechanism (second hand stops when crown is pulled out to set the time – standard feature on all genuine Rolex watches). * Diver's extension to watch bracelet. * Sapphire crystal watchglass. * Screws in the links, not pins. * Rolex logo etched at 6 o'clock position on watch dial. * Rubber seal at trip-lock winding crown. * Serial band/number on last link/lugs. * Fliplock oyster bracelet, steelinox clasp, serial number on clasp. * Solid back with characteristic Rolex green sticker. * Screw-in watch crown. * Luminescent hour markers/hands. * All the appropriate Rolex markings in the correct places. http://gemcame.com