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Nicknamed the "Triple Six" among enthusiasts, the Rolex Sea-Dweller reference 16660 is a standout transitional model in Rolex's lineup of professional dive watches. Introduced in 1978, this reference acted as a bridge between the earlier Sea-Dweller 1665 and the later 16600, embodying design elements that appealed to both vintage and contemporary collectors. During its production, Rolex continued to manufacture the Sea-Dweller 1665 alongside the 16660 for about five years, making this period unique in the watch's history and enhancing its collectible appeal.

What sets the Sea-Dweller 16660 apart are the significant advancements it brought to the Sea-Dweller family. The model saw improvements in its durability and functionality, including the introduction of a scratch-resistant sapphire crystal, the upgraded Caliber 3035 movement, and the quickset date feature, which allowed users to adjust the date independently of the time. Most notably, it doubled the water resistance of its predecessor, reaching depths of up to 4,000 feet (1,220 meters), a feature that solidified its reputation among professional divers. These enhancements marked a leap in Rolex's engineering, positioning the Sea-Dweller 16660 as a robust tool watch for extreme underwater environments.

With the youngest Sea-Dweller 16660 now over 30 years old, it holds a solid place in the vintage Rolex market. The watch’s unique production history also means there are two main dial variations: earlier models feature a matte dial with painted hour markers, while later models showcase a glossier dial with applied hour markers. This evolution in dial design gives collectors a choice between two distinct aesthetics within the same reference—early matte dials offer a more traditional, vintage look, whereas the glossy dials feel more contemporary, hinting at the transition Rolex was making toward modern luxury watches.

For collectors, the Sea-Dweller 16660 isn’t just a watch; it’s a piece of Rolex’s legacy in saturation diving technology. Its blend of vintage appeal, improved functionality, and collectibility make it a sought-after model for those who appreciate the history of Rolex’s tool watches. Whether you're a seasoned collector or a newcomer to the world of vintage watches, the Triple Six is an excellent addition to any collection, offering a rare glimpse into a transformative period in Rolex’s history.

Year: 1984
Includes: Watch only
Notes: Serviced in 2023

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