The Rolex Sea-Dweller, a watch synonymous with professional diving and enduring style, boasts a rich history encompassing numerous iterations. Two models stand out amongst collectors and enthusiasts alike: the reference 1665 and the reference 16660. While both are capable dive watches designed for extreme depths, they represent distinct eras in Rolex's development and possess unique characteristics that set them apart. This article will delve into a detailed comparison of the Rolex 1665 and the 16660, exploring their design differences, technical specifications, market value, and the factors that contribute to their enduring appeal. We'll also touch upon specific variations within each reference, such as the highly sought-after Rolex 1665 Double Red (DRSD) and the matte dial 16660.
The Rolex 1665: A Legend in its Own Time
The Rolex 1665 Sea-Dweller, produced from approximately 1967 to 1978, is often considered the quintessential vintage Sea-Dweller. Its robust construction, impressive water resistance (up to 610 meters/2000 feet), and distinctive design cemented its place in horological history. The 1665 was a significant step forward in dive watch technology, offering a helium escape valve (HEV) crucial for saturation diving – a feature that would become a staple of subsequent Sea-Dweller models. The HEV, located at 9 o'clock, allowed helium gas to escape during decompression, preventing the crystal from shattering under pressure.
The dial variations of the 1665 are a major source of fascination for collectors. The most famous variant is undoubtedly the Rolex 1665 Double Red Sea-Dweller (DRSD). Characterized by the "Sea-Dweller" text printed in red above the "2000ft = 610m" marking, this version is exceedingly rare and commands incredibly high prices on the collector's market. Finding a well-preserved example of a Rolex 1665 DRSD for sale is a significant undertaking. The transition from the double red to single red lettering represents a key change in the model's production history. Other dial variations exist, with differences in the font style, lume plots, and the presence or absence of a cyclops lens over the date window.
The case of the 1665 deserves special mention. While generally robust, some collectors refer to the Rolex 1665 thin case as a desirable characteristic, though variations in case thickness exist depending on production year and individual examples. The 1665 also utilized the iconic Rolex caliber 1570 movement, a workhorse known for its reliability and durability. This movement, along with the watch's overall construction, contributes to the 1665's legendary reputation for resilience. Searching for a Rolex 1665 Sea-Dweller today often involves navigating a field of varying conditions, requiring a keen eye for authentic examples and careful assessment of the watch's overall state.
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