Rolex, Sea-Dweller, 126603, Black Dial, Steel & Yellow Gold, Oyster Bracelet, 43mm

The Rolex Sea-Dweller 126603-0001 is a 43mm professional dive watch that combines deep-sea capability with a Yellow Rolesor construction of Oystersteel and 18k yellow gold.

The robust Oyster case is designed for durability and resistance to corrosion, making it suitable for demanding underwater environments.

Its unidirectional rotatable bezel features a black Cerachrom ceramic insert with engraved graduations, allowing divers to monitor immersion time accurately.

The black dial is designed for clarity and balance.

Large hour markers and hands are filled with Chromalight, producing long-lasting blue luminescence in low-light conditions.

A date window at 3 o’clock is magnified by a Cyclops lens integrated into the sapphire crystal, improving readability at a glance.

The watch is powered by the Rolex Calibre 3235, a self-winding movement delivering approximately 70 hours of power reserve and stable chronometric performance.

The Triplock screw-down crown and helium escape valve support professional diving operations and contribute to the watch’s technical reliability.

Water resistance is rated to 1,220 metres, supported by a solid caseback and reinforced case architecture.

The Oyster bracelet combines Oystersteel outer links with solid 18k yellow gold centre links and is secured by an Oysterlock clasp.

The bracelet also incorporates the Glidelock and Fliplock extension systems for precise adjustment over diving equipment.

With its combination of precious metal and professional specifications, the Sea-Dweller 126603-0001 presents a distinctive interpretation of Rolex’s deep-diving instrument watches.