Rolex Sea-Dweller 43

Rolex Sea-Dweller 43 Ref. 126600 “Single Red”

The Rolex Sea-Dweller reference 126600 from 2021 embodies the ultimate tool watch for professional deep-sea watchmaking. Introduced in 2017 to mark the model line’s 50th anniversary, this reference bridges historic heritage and the latest Geneva manufacturing technology. With its distinctive 43 mm case diameter, red “Sea-Dweller” lettering (a tribute to the original 1967 reference 1665 “Single Red”) and a date magnifier, integrated for the first time in a Sea-Dweller, the 126600 redefines the gold standard for uncompromising dive watches.

• Solid 43 mm Oyster case in Oystersteel: Made from highly corrosion-resistant 904L stainless steel. The more substantial lugs and case sides, compared with the Submariner, give the timepiece a powerful visual presence on the wrist, without compromising its ergonomic balance.

• Helium escape valve at 9 o’clock: An automatic pressure-release valve in Titanium, integrated into the left side of the case. It allows helium accumulated inside the case to escape safely during ascent from saturation-diving depths, preventing damage to the crystal case back.

• Unidirectional rotatable diving bezel in black Cerachrom ceramic: Scratch-resistant, UV-resistant and corrosion-free. The recessed 60-minute graduations are precisely coated with platinum using the PVD process. The platinum capsule at 12 o’clock is filled with intensely glowing Chromalight material.

• Deep black dial with historic “Single Red” lettering: The satin-finished black dial is distinguished by the bright red “Sea-Dweller” lettering. Generously sized hour markers and hands in 18-karat White Gold, with blue-glowing Chromalight, ensure excellent legibility in the deepest ocean regions.

• Date display at 3 o'clock with Cyclops lens: For the first time in the Sea-Dweller's 50-year history, Rolex integrated the iconic 2.5x Cyclops lens on the Sapphire Crystal, significantly improving calendar legibility.

• In-house automatic caliber 3235 (COSC-certified): Powered by Rolex's high-performance movement generation with patented Chronergy escapement, blue Parachrom hairspring and Paraflex shock protection system. Offers an extended power reserve of approx. 70 hours with the utmost precision (-2/+2 seconds per day).

• Scratch-resistant, anti-reflective Sapphire Crystal: A solid Sapphire Crystal reliably protects the dial against extreme mechanical stress.

• Screw-down Triplock winding crown: Equipped with three independent sealing zones for complete case hermeticity against water and sand.

• Exceptional water resistance (1,220 m / 4,000 ft / 122 ATM): Pressure-tested for the most extreme professional deep-sea operations.

• Three-piece Oyster bracelet with Fliplock & Glidelock: Equipped with the Oysterlock safety folding clasp and the patented Glidelock system (tool-free fine adjustment in 2 mm increments up to 20 mm) and the folding Fliplock extension link for wearing over thick wetsuits.

• Modern Subsea Legend (2021): Reference 126600 combines the finest heritage of Rolex's deep-sea history with uncompromising modern manufacture technology - an imposing, highly sought-after classic for professional divers and connoisseurs of robust tool watches.