Rolex Sea-Dweller 16660 Matte Dial Heavy Patina 1981 (Full-Set/Unpolished)

Rolex Sea-Dweller 16660 “Triple Six” – Matte Dial Transitional Diver

Rolex is renowned for its dedication to precision, durability, and innovation—qualities that have made it a leader in the world of professional tool watches. Among its most capable models, the Sea-Dweller stands as the brand’s premier deep-sea diving watch, originally developed in partnership with commercial divers in the late 1960s.

The Ref. 16660, nicknamed the “Triple Six,” was introduced in the early 1980s as a transitional reference that marked several key upgrades in the Sea-Dweller line. It was the first model to feature a sapphire crystal, increased depth rating (up to 1,220 meters), and the updated Caliber 3035 movement with quickset date functionality. Early examples like this one with a matte dial and tritium lume are especially prized, as they combine vintage aesthetics with modern performance upgrades.

Positioned between the earlier 1665 “Great White” and the later 16600, the 16660 bridges old and new in both design and technology, making it one of the most collectible references in the Sea-Dweller lineup.

Key Details To Consider

This Rolex Sea-Dweller Ref. 16660, also known as the “Triple Six,” is a standout example of an early transitional Sea-Dweller, offered here in full original condition and completely unpolished. Acquired directly from the original family, this single-owner piece retains its factory finish with visible signs of wear that reflect its honest history.

The matte dial features beautifully aged tritium lume, with warm patina spread evenly across the hour markers and a matching set of hands. Under UV light, the lume still reacts briefly, confirming its originality. The bezel insert has faded to a subtle matte tone that enhances the watch’s vintage appeal.

The stainless steel Oyster bracelet remains full length and shows only light stretch—typical and expected for a watch of this era. All reference and serial numbers between the lugs are perfectly legible and intact.

The movement was professionally serviced in April 2025 and successfully pressure tested, ensuring it’s ready for regular wear. This watch comes complete with its original box and papers, making it an excellent addition for collectors of tool watches with strong provenance and untouched charm.

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