Rolex Sea-Dweller | 40mm Black Dial | Ref. 16600 | Unpolished | L Serial (1989)

The Rolex Sea-Dweller Ref. 16600 is a classic professional dive watch built for serious underwater use, combining the familiar styling of Rolex’s iconic sports watches with the enhanced engineering required for saturation diving. Housed in a stainless steel Oyster case measuring approximately 40mm, this reference features a black dial, black unidirectional rotating dive bezel with aluminum insert, sapphire crystal, helium escape valve, and Rolex’s automatic self-winding Calibre 3135.

The Ref. 16600 is distinguished by its clean, purpose-built design and impressive technical capability. Unlike the Submariner Date, the Sea-Dweller features a flat sapphire crystal without a Cyclops magnifier over the date, giving the dial a more balanced appearance. Its helium escape valve and substantial original depth rating of 1,220 meters / 4,000 feet reflect the model’s professional diving heritage, while the classic 40mm proportions, aluminum bezel insert, luminous markers, and stainless steel Oyster bracelet give the watch the unmistakable neo-vintage Rolex sports-watch aesthetic.

Condition

Please review the photos carefully for an accurate representation. Light scratches, bracelet wear, bezel wear, bezel insert wear, crystal wear, case wear, patina, or signs of use consistent with age may be present and do not affect functionality. The watch presents well overall with expected wear for its age.

Technical Data

• Reference: 16600

• Model: Rolex Oyster Perpetual Sea-Dweller

• Year: L Serial (1989)

• Case Diameter: Approximately 40mm

• Case Material: Stainless Steel

• Bezel: Black Unidirectional Rotating Dive Bezel

• Bezel Insert: Black Aluminum

• Dial: Black Dial with Luminous Hour Markers

• Crystal: Sapphire Crystal

• Cyclops Magnifier: None

• Crown: Screw-Down Rolex Triplock Crown

• Helium Escape Valve: Automatic Helium Escape Valve

• Bracelet: Stainless Steel Rolex Oyster Bracelet

• Movement: Rolex Calibre 3135 Automatic

• Power Reserve: Approximately 48 Hours

• Functions: Hours, Minutes, Center Seconds, Date, Rotating Elapsed-Time Bezel

• Water Resistance: Originally rated to 1,220 meters / 4,000 feet