"Double Red" Sea-Dweller reference 1665


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The Rolex Sea Dweller is one of the most iconic sport Rolex watches and a staple of any serious Rolex collector.  Rolex developed and introduced the Sea Dweller model as a tool watch for those working in saturation diving at deeper underwater environments - up to 2000 feet or 610 meters below the surface - compared to the Submariner that was rated to 660 feet or 200 meters. These Sea-Dweller models featured a patented valve in the case of the watch to allow helium and other gases to escape during decompression.

The "Double Red" series of early Sea Dwellers is the most desirable version of the watch, with two of the five lines at the bottom of the dial printed in red (sometimes faded to pink), and only produced for 10 years from 1967 to 1976. Double Red Sea Dwellers were initially printed in four dial types referred to as Mark I, II, III, and IV.  The current watch on offer is from 1976, the last series of original dials referred to as Mark IV.   Sea Dwellers produced after 1976 feature all-white text and no longer featured the "SUBMARINER 2000" designation on the dial.

This Rolex "Double Red" Sea-Dweller came from the family of the original owner, who wore it with care as one of his prized possessions after purchasing it new around 1976.  The watch is beautifully preserved with a case in excellent condition showing the original bevels on the edges of the lugs. The tritium luminous material on the dial and in the hands is original to the watch (many sport Rolex watches suffered damage to the original tritium, which was later replaced with more modern luminous material) and has aged beautifully to a warm, cream color. It also features the original bezel and insert, which shows beautiful thick numerals. Lastly, the watch features the original "superdome" crystal that provides a more sporty, correct, vintage look.  In summary, we love this rare Rolex reference in beautiful, rare original vintage condition.


The watch was recently serviced by a Rolex-certified watchmaker and should serve the next owner faithfully for many years.


  • Maker: Rolex
  • Model: Sea Dweller
  • Reference: 1665
  • Year: 1976
  • Case No: 420XXXX
  • Material: Steel
  • Dimensions: 40mm
  • Sapphire Crystal: No, acrylic
  • Bracelet/Strap: Steel Bracelet
  • Box: No
  • Papers: Service Papers
  • Warranty: One-year warranty by Material Good 


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