Introduction
Debuting in 1967, with the specific aim of bolstering Rolex's dive watch offering, the Rolex Sea-Dweller was built upon the industry-leading dive watch credentials that the Submariner had earned Rolex over the previous 14 years. Created specifically with professional saturation divers in mind, Rolex collaborated with diving companies like COMEX to perfect the Sea-Dweller's design and ensure it would be the ultimate dive watch. Featuring the ingenious Helium-Escape Valve that Rolex had patented the same year, a hugely impressive water resistance, and a sizeable case design, the Sea-Dweller rightfully toppled the Submariner as Rolex's most hardcore dive watch. Today vended in a few separate styles such as two-tone, with various dials, and in two different case sizes (43mm and 44mm), the Sea-Dweller has taken a leaf from the rest of Rolex's offerings and merged its tool-watch focused design with tasteful aesthetics, to create one of the most sought-after and best-equipped dive watches that any diver might ever need.
The 1665 Sea-Dweller was the first watch manufactured by Rolex to include the HEV. Made specifically with commercial divers in mind, it had a depth rating of 2000 feet, as opposed to the 660 feet of the standard Submariner. At first commercially introduced with the text "SEA-DWELLER SUBMARINER 2000" in red, like ours here, this iconic red text was eventually swapped for white inscriptions in 1977.
Loupe This Scorecard
Grade
V 8.5
Status
Vetted & Approved
Included
Watch Only
Est. value range
$20,000 – $30,000
The Details
Brand
Rolex
Dimensions
40mm
Model
Sea-Dweller
Movement
Automatic cal. 1570
Reference
1665
Bracelet
Stainless steel Oyster bracelet
Year
1976
Condition
Excellent
Material
Stainless steel
Included
Watch only
Dial Color
Black
THE DIAL
Featuring its iconic Mk4 double red dial, this example was amongst the last batch of double red Sea-Dwellers as the Mk4 dial was followed by the plain white inscription dial that also lost the "Submariner" distinction. Additionally, this example's hour markers and hands have aged to include a stunning yellow patina.
THE CONSTRUCTION
An imposing watch on account of its intended use as a tool watch for divers, the ref. 1665 is tall on the wrist thanks to its revolutionary HEV and domed crystal. Additionally, this example's uniquely aged bezel adds a wonderful level of visual depth to its aesthetic.
TIMING MACHINE READOUT
This reading was taken (crown down) with a ONEOF Accuracy Boutique Edition timing machine at time of cataloging. It is provided as a courtesy only, and shall not be construed as a warranty or guarantee of any kind. Please refer to our terms and conditions of sale for more information.
Condition
Watch is in excellent overall condition. Case is very strong, with full thick lugs are chamfered edges. Surfaces are flat and show only minor surface scratches and marks. Bezel insert is lightly aged with some minor aging and an intact luminous pearl. Original Mk4 DRSD dial in excellent condition with only minor signs of aging. Luminous plots are aged to a creamy tone, with the lower plots being slightly darker in tone. Original tritium hands match the dial. Watch comes on a 9135 folded link fliplock bracelet with 11 links total. It fits an approx 7" wrist and shows light stretch.
Our Perspective
Perhaps one of Rolex's most important stepping stones to conquer the diving watch niche, the ref. 1665 showcased exactly how far ahead of the competition Rolex was. With its helium escape valve and impressive water resistance, the ref. 1665 was the ultimate dive watch, a title the modern-day Sea-Dweller still retains thanks to the path the ref. 1665 paved.
Justin Gruenberg
Co-founder
