Rolex Sea-Dweller Ref. 1665 “Rail Dial”

Year of issue: 1979
Reference number: 1665
Condition: worn
Status: sold
Dealer country: United States
Price in US $ n/a


Called the "Rail Dial" because of the alignment of the SCOC text, these dials were manufactured for Rolex by Cadrans Stern, who also made the Comex 1665 dials. This particular example features a beautiful creamy patina with matching hands.


Thick case with minor scratches and surface wear. Small nick along edge as shown. Text on exterior of caseback is crisp and not heavily worn. Numbers between lugs are also clear and visible to the naked eye.


Dial is in excellent condition with no visible marks on the surface. Patina is a beautiful shade of medium cream, with matching hands and pearl. The bezel insert has minor wear as shown.


Solid oyster fliplock bracelet with 12 links in excellent condition. There is little to no stretch. 585 end pieces.


Eric Ku


1967 saw the launch of the Oyster Perpetual Sea-Dweller, waterproof to a depth of 610 metres. To meet the needs of professional deep-sea divers, the case was equipped with a helium escape valve so that, during long decompression phases in hyperbaric chambers, the helium from the gas mixtures used could be released without risking damage to the watch. Learn more about the first Seadweller from my RPReport by following this link...

SEA-DWELLER 4000 - 1978

Rolex launched the Sea-Dweller 4000, waterproof to a depth of 1,220 metres (4,000 feet).