Rolex Seadweller 1665 "Great White" MK1

The Rolex Sea-Dweller Ref. 1665 “Great White” marks a defining era in the lineage of Rolex’s professional dive watches. Emerging in the mid-1970s, it followed the legendary “Double Red” Sea-Dweller, continuing Rolex’s partnership with COMEX and professional saturation divers who required a timepiece capable of surviving extreme underwater pressures. This evolution saw the helium escape valve remain a key feature while the aesthetic matured—the red lettering was replaced entirely by white, giving rise to the nickname “Great White.”

The present example, with serial number 5.xxx.xxx and dating to circa 1977, represents an early Mark 1 dial variant. Hallmarks of the MK1 include bold white printing for the four lines of text, distinctive open 6s in “2000ft,” and a serifed “Rolex” font—all contributing to a strong, purposeful visual identity. The matte black dial surface exudes vintage charm, complemented by warm, evenly aged tritium lume that has developed a pleasing creamy patina over time.

Fitted with the correct 93150 Oyster bracelet and 585 end links, this Sea-Dweller retains its authentic period configuration. The case remains in excellent, honest condition, showing strong lugs and crisp chamfers, suggesting careful wear and minimal polishing. The bezel insert presents subtle fading, adding depth and character, while the crystal—with its signature domed profile—enhances the vintage appeal. Together, these details tell the story of a well-preserved tool watch that has aged gracefully, embodying both the technical prowess and timeless aesthetics that define Rolex’s golden era of professional diving instruments.