The Rolex Oyster Perpetual Sea dweller watch is the ultimate divers watch. Originally released in the year 1967, this watch is distinguished by the absence of the cyclops window on the sapphire crystal and the helium gas escape release valve on the side of the case. The Rolex Sea Dweller is guaranteed waterproof to a depth of 4000 feet. In 2008, Rolex went a step further with the Sea dweller model and released the 43mm "Deepsea" model waterproof to an astounding 12800 feet (3900 meters). Our pre-owned and new Rolex Submariner's are assets that only appreciate in value over time, but unlike a stock or bond can be worn and enjoyed on a daily basis.