Rolex Sky-Dweller 16660

Rolex Sea-Dweller 16660 with Original Guarantee Certificate

Debuting in 1967, with the specific aim of bolstering Rolex's dive watch offering, the Rolex Sea-Dweller built upon the industry-leading dive watch credentials that the Submariner had earned Rolex over the previous 14 years. Created specifically with professional 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 offered 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. Brand : Rolex Dimensions : 40mm Model : Sea-Dweller Movement : Automatic cal. 3035 Reference : 16660 Bracelet : Stainless steel Oyster bracelet Year : 1987 Condition : Excellent Material : Stainless steel Included : Watch and papers Dial Color : Black THE DIAL Boasting a Mk. 4 dial, this ref. 16660's black dial is glossy and features 18kt white gold surrounds for its luminous hour markers. A way to differentiate between Mk. 3 and Mk. 4 glossy dials is the hyphen between "SEA" and "DWELLER", as on this dial, which is missing on the Mk. 3 dials. THE CONSTRUCTION While now ubiquitous amongst every Rolex model, the ref. 16660 introduced the sapphire crystal to the Sea-Dweller collection. Fitted without Rolex's signature cyclops lens at 3 o'clock, this sapphire crystal sets itself apart from other Rolex models that feature the date-magnifying bubble. 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.