During the 1960s, commercial work in the oceans and seas created professional diving organisations that needed tool watches designed for conducting safe diving operations at greater depths - known as saturation diving. This led to the development of the first 'ultra water resistant' watches.The Rolex Oyster Perpetual Sea-Dweller Submariner 2000 that became available in 1967. Replica Swiss Rolex Sea Dweller we offer are made of high quality material with an innovative case architecture.