The Rolex Sea-Dweller 16660 also known as the "Triple Six" was introduced
link in the early 1980s as a significant evolution in the Sea-Dweller line. This model marked the transition from the
link earlier Sea-Dweller 1665 by incorporating a series of technical and design advancements. One of the most notable features is its increased depth rating to 4000 feet 1220
link meters which doubled the depth capability of its predecessor.