In an endeavor to serve deep water exploration and diving, Rolex introduced submariner in early 1950s but they did not halt there. There was a need to dive deep further and hence the birth of Sea-Dweller in 1967. Designed for professional divers who require a robust and reliable timepiece for use in extreme underwater environments. A big difference in the submariner and Best Sea Dweller Clone is the helium escape valve. The purpose of the creation of this watch was to enter the challenges of a deep dive. Which is also present in a 1:1 Replica Sea Dweller that you would buy from us! Like A Genuine Sea-Dweller the Fake Sea Dweller too is made of 904L Stainless Steel. The Domed front crystal is also made of sapphire and has a laser etched Rolex crown at 6 O Clock position. It has a Swiss Cloned movement and is water resistant to 100 meters.