New Rolex Sea-Dweller DEEPSEA for Conquerors of Extreme Depths

Rolex has developed a new Sea-Dweller watch for most courageous and adventurous divers who are ready to conquer unbelievable depths and need a reliable timekeeping companion on their wrist.

The new Rolex Oyster Perpetual Sea-Dweller DEEPSEA provides a remarkable waterproofness to an extreme depth of 3,900 meters (equal to12, 800 feet). The diver's watch has required its creators to come up with a few innovative decisions - the timepiece is based on a RINGLOCK SYSTEM, a new Rolex-patented case architecture that is able to resist the colossal pressure exerted by water at extreme depths
The first major feature of the innovative system is the high-performance ring that is set inside the middle case between the crystal and the case back. The ring is produced from the nitrogen-alloyed stainless steel. It allows the watch to resists the pressure exerted by water on the crystal and the case back. The middle case is produced from 904L steel.

Another important component of the RINGLOCK SYSTEM is the synthetic sapphire crystal that is slightly domed and much thicker than the crystals of other Rolex Oyster watches.

Finally, the system features the case back made of a titanium alloy, a stainless material of extreme resistance. The case back is held in place against the high-performance ring with help of a 904L-steel ring.