For your consideration, one of the most capable and iconic professional dive watches in the Rolex lineup. This stunning Ref. 126660 Deepsea Sea-Dweller features the classic black dial and original Oystersteel construction. It is a modern engineering marvel designed for extreme depths — yet offers everyday wearability and the signature refinement expected from Rolex. With its impressive specification, original Rolex Certificate Card, and outstanding condition, this piece is a perfect example of Rolex’s mastery in professional tool watches.
HISTORY: The Ref. 126660 represents the second generation of the Rolex Deepsea Sea-Dweller series, originally designed for commercial divers and saturation diving applications. Introduced in 2018, the 126660 brought subtle refinements in case design, movement, and bracelet comfort, while preserving the extreme 3,900-meter (12,800 feet) water resistance that made the Deepsea famous. It continues Rolex’s long-standing tradition of crafting watches built for the harshest environments on Earth. DIAL: The rich black dial offers exceptional legibility, with Chromalight blue lume providing superior visibility in darkness and underwater. The clean matte finish is complemented by bold white text and the iconic Deepsea / Sea-Dweller designations. The dial is completed with classic Mercedes hands and large luminous markers, ensuring clarity at any depth.
CASE: The 44mm Oystersteel case is in outstanding condition, with sharp lines and a perfect blend of brushed and polished surfaces. The unidirectional ceramic bezel remains immaculate, offering precise elapsed-time tracking for divers. The case is fitted with the Rolex Ringlock System — a patented architecture allowing the Deepsea to withstand the immense pressures of deep-sea diving. BRACELET: The Oyster bracelet, crafted from solid Oystersteel, is in immaculate condition, with a fully brushed finish and Rolex Glidelock extension system. This allows for micro-adjustments without tools, ensuring a perfect fit whether worn on the wrist or over a wetsuit. The clasp is Rolex-signed and includes the Fliplock extension for added flexibility. The bracelet fits up to a 7.5" wrist (additional links are readily available on ebay)
MOVEMENT: Inside, the 126660 is powered by the Rolex Calibre 3235 — one of the brand’s most advanced movements. It beats at 28,800 vibrations per hour (4 Hz) and offers an impressive 70-hour power reserve. Equipped with Rolex’s Chronergy escapement and Parachrom hairspring, the movement delivers exceptional precision, reliability, and resistance to magnetic fields and shocks. With its iconic black dial, legendary engineering, and superb condition — paired with the original Rolex Certificate Card — this 126660 Deepsea Sea-Dweller offers a rare opportunity to acquire one of the ultimate professional dive watches in the world.