Sea-Dweller 40 Ref. 16600 Steel

Introduced in 1988, the Sea-Dweller ref. 16600 is the more purpose-built sibling to the Submariner 16610. Designed for saturation diving, the stainless steel case incorporates a helium escape valve and wears noticeably more substantial on the wrist, while retaining the clean look of a crystal without a Cyclops magnifier.

Dating to circa 1999, this example features a black “SWISS” dial with luminous dot, baton and triangle hour markers, Mercedes hands and an outer minute track. The unidirectional rotating bezel retains its black aluminum insert, while the watch is powered by Rolex’s caliber 3135 automatic movement.

Measuring 40mm across and approximately 14mm thick, it is fitted to its stainless steel Oyster bracelet with flip-lock clasp. The ref. 16600 sits nicely between vintage and modern Rolex, retaining its aluminum bezel and straightforward tool-watch design while offering the construction of a more contemporary Sea-Dweller.