As its name implies, the Rolex Sea-Dwellers are water resistant to 4,000 feet with the intention to withstand deep, long-term dives. This article deconstructs a Sea-Dweller ref. 16600 from circa 2007 with traces in its history to 1967. It is said to be one of the most robust of all the Rolex tool watches.
All Rolex tool watches from the 1950s and 1960s used Oyster cases, but only the Submariner and Sea-Dweller were truly meant for professional use underwater. They are said to have military connections from that era, but the Submariner was always more of a gentleman’s diver.
The Sea-Dweller was the one which was made to meet the demands of the most extreme diving conditions, and even used input from the US Navy Sea-Lab for its development. Its design really pushed the technical limits of the mechanical watch, and was even tested by civilian divers employet at Compagnie Maritime d’Expertise.
Read the full story here :: Deconstructed: Rolex Sea-Dweller, Ref. 16600