Rolex. A fine and rare stainless steel automatic diver's watch Oyster Perpetual Date, Sea-Dweller, Ref: 1665, Case no. 5491473, Circa 1975
Lot 1039
Rolex. A fine and rare stainless steel automatic diver's watch Oyster Perpetual Date, Sea-Dweller, Ref: 1665, Case no. 5491473, Circa 1975
HK$ 160,000 - 240,000
US$ 21,000 - 31,000

Lot Details
Rolex. A fine and rare stainless steel automatic diver's watch
Oyster Perpetual Date, Sea-Dweller, Ref: 1665, Case no. 5491473, Circa 1975
26-jewel, Cal. 1570, self-winding movement, straight line lever escapement, monometallic balance adjusted to temperatures and 5 positions, shock absorber, self-compensating free-sprung breguet balance spring, hacking movement, helium escape valve at 9, black dial with luminous round dot, triangular and baton indexes, aperture for the date at 3, center seconds, luminous steel skeleton hands, screwed-down case back and crown, revolving black bezel for the decompression times, Triplock winding crown protected by the crown guard, plastic crystal, polished stainless steel Rolex Oyster Fliplock bracelet, together with box and certificate, case, dial and movement signed 39mm.

Footnotes

  • Since the 1950s, increasing deep sea drilling for oil and gas and popularity of undersea explorations led to a rise in demand and set a higher standard in water resistant watches. In 1967, Rolex developed a prototype of Sea-Dweller, guaranteed 500m water resistance; however, not all of the early models had the helium escape valve. Finally in 1971, an improved Sea-Dweller was launched, waterproof to 2000ft (610m), equipped with a helium valve, and a fliplock bracelet that allowed divers to wear the watch outside of the diving suits. Another distinctive feature of this watch was the absence of the cyclop, as it had a larger sized crystal than its kind.
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