Being one of the first watches from Rolex to use 904L steel in its construction, today known as Oystersteel, the 16600 in its 40mm by 14.5mm Oyster case features a wonderful weightiness and signature, action-ready sturdiness which has defined the Sea-Dweller collection from its 1967 origins. A unidirectional, black aluminum-insert bezel adds to the watch's professional grade credentials, as does a subtle helium escape valve opposite the screw-down crown.
On the dial, a highly-legible dial produced in Rolex's distinct diver configuration is showcased, complete with a 3 o'clock date window, lume-filled hour markers and hands, and a deep black dial contrasting to it all. Worth noting is the 16600, like most Sea-Dwellers, does not feature a cyclops magnifier over the date, differentiating it from the rest of the Rolex's catalogue collection as a distinct signature for the collection.
This example appears to be almost unpolished featuring its original tritium dial with even signs of patina across all the markers. The hands appear to be later from a replacement service at some point in the last 30 years.
It includes its original box, booklets and warranty papers stamped January of 1990.
Bracelet length measures 21.7cm, no additional links are included.