Rolex Rolex Sea Dweller 1665

The final and official version of the Rolex Sea-Dweller (reference 1665) was presented in 1971. The Sea-Dweller, which literally means "the abyss dweller", was designed according to the technical requirements of COMEX, a prominent French submarine operating company. Until then, COMEX operators were equipped with the Submariner 5513, but it had pressure-related problems during deep dives that could lead to the glass breaking. Rolex decided to fix this problem by creating a new model with a small valve on the left side of the case that lets helium escape during decompression. The Rolex Sea-Dweller 1665 was first introduced in 1967 and comes in two main variants: the Great White with a black dial and white lettering, and the Double Red with a black dial and "SEA-DWELLER SUBMARINER 2000" written in red on two lines. Double Red: 1967 - 1977