Rolex Sea-Dweller 40mm - Ref. 16600

For sale is a highly collectible Rolex Sea-Dweller Ref. 16600, a professional-grade dive watch originally released as the brand’s most capable saturation diving tool.

This particular example was produced in 1999 and is offered as a complete set, including the original inner and outer boxes, punched guarantee papers, both swing tags, leather wallet, and booklets.

With a production span from 1989 to 2009, the 16600 is often considered the last “classic” Sea-Dweller, retaining the tool-watch charm that defines Rolex’s heritage. This watch is in immaculate overall condition, with some light scuffs and wear-related marks on the bezel insert.

The Case: The case of the Sea-Dweller 16600 is crafted from 904L stainless steel and measures 40mm in diameter. Unlike the Submariner, the Sea-Dweller features a thicker case and deeper depth rating of 1220 meters / 4000 feet, enabled by the inclusion of a helium escape valve on the left side of the case. The case remains in outstanding condition, with sharp lugs, thick crown guards, and no signs of over-polishing. The Triplock crown ensures water resistance and is securely screwed down. This watch features a sapphire crystal with no magnification bubble, offering a clean, flat profile that divers and collectors appreciate.

The Bezel: The Sea-Dweller is equipped with a unidirectional rotating bezel with a black aluminum insert, used to time decompression stops or elapsed dive time. While the case and crystal are pristine, the insert shows some scuffs and wear-related marks, consistent with light use. These surface imperfections do not detract from the functionality of the bezel and offer a touch of character for collectors who appreciate signs of genuine wear on a tool watch.

The Dial: This example features a black gloss dial with applied white gold surrounds on the hour markers, filled with luminous material. The dial is signed “SWISS” at 6 o’clock, indicating it was produced during the transitional period just before Rolex switched to “SWISS MADE,” making this configuration especially desirable to some collectors. The overall dial and handset are clean, unmarked, and present beautifully under all lighting conditions.

The Bracelet: The watch is fitted with its original Rolex Oyster bracelet, reference 93160A, featuring solid end links and a flip-lock clasp with a diver’s extension. The bracelet is tight, with minimal stretch, and remains in superb condition. The clasp is correctly signed and closes with a firm, satisfying snap.

The Movement: Powering the Sea-Dweller 16600 is the Rolex Calibre 3135, a robust and reliable in-house automatic movement known for its precision and durability. It features a quickset date, hacking seconds, and a smooth 28,800 vph beat rate. The movement is COSC-certified and remains one of Rolex’s most respected workhorse calibres. It is running well, keeping accurate time, and all functions operate as intended.

Provenance: This Sea-Dweller was produced in 1999 and is sold as a complete set, including the original inner and outer Rolex boxes, punched guarantee papers, both green and red swing tags, Rolex leather wallet, and associated manuals.

Summary: The Rolex Sea-Dweller 16600 is a cornerstone of Rolex’s professional dive watch lineage—offering more technical capability than the Submariner, yet retaining a classic 40 mm size and vintage character. With its “SWISS”-only dial and full kit presentation, this 1999 example is both an exceptional collector's piece and a highly functional dive watch ready for continued wear. A perfect choice for those seeking a historically significant Rolex with full provenance and authentic appeal.

Included with the watch:

- Original Box: Yes

- Original Papers: Yes

Technical Data:

- Model: 16600

- Year: 1999

- Case material: Stainless Steel

- Case diameter: 40mm

- Bracelet: Rolex Oyster

- Bracelet material: Stainless Steel

- Dial: Black

- Crystal: Sapphire

Movement:

Rolex Automatic self-winding movement