RolexSea-Dweller

The Sea-Dweller is Rolex's saturation diver, made in 1967 with a helium escape valve and a 610 m rating. It has since grown to the 3,900 m Deepsea and the 11,000 m Deepsea Challenge. This library holds 28 references.

About the Rolex Sea-Dweller

The 1665 of 1967 was built for Comex's saturation divers, whose helium-rich habitat gas seeped into a watch and could blow its crystal off on decompression; the valve, developed with Doxa, vents it, and the glossary explains the helium escape valve. The 16660 of 1978 took the rating to 1,220 m with a sapphire crystal, the 16600 of 1988 carried it on the 3135, and the Deepsea 116660 of 2008 reached 3,900 m with a 44 mm Ringlock case and a titanium back. The 2017 Sea-Dweller 126600 at 43 mm added a Cyclops lens for the first time, and the Deepsea Challenge of 2022, in RLX titanium at 50 mm, is rated to 11,000 m, the depth of the Mariana Trench.

The 3135 and 3235 power 10 references each, the 3035 of the 16660 6 and the no-date 3230 of the Deepsea Challenge 2. The 40 mm case of the 16660 and 16600 accounts for 14 references, the 44 mm Deepsea for 9, the 43 mm for 3 and the 50 mm for 2. Steel is the material of 18 cases, steel with a titanium back of 6, and the Challenge's titanium of 2; one is yellow Rolesor. Black dials lead at 23, with the D-Blue of the James Cameron edition on 5. Water resistance is 1,220 m on 17 references, 3,900 m on 9 and 11,000 m on 2. The 16660 and 16600 families, with their Comex and Tiffany variants, are the largest.

The Submariner is the 300 m diver the Sea-Dweller was built from, and the Yacht-Master the Oyster made for the surface.