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  • reference

    126603

  • model case

    Oyster, 43 mm, Oystersteel and yellow gold

  • bezel

    Unidirectional rotatable 60-minute graduated, scratch-resistant Cerachrom insert in ceramic, numerals and graduations coated in gold

  • water-resistance

    Waterproof to 1,220 metres / 4,000 feet, helium escape valve

  • movement

    Perpetual, mechanical, self-winding

  • caliber

    3235, Manufacture Rolex

  • power reserve

    Approximately 70 hours

  • bracelet

    Oyster, three-piece solid links

  • dial

    Intense black

  • certification

    Superlative Chronometer (COSC + Rolex certification after casing)

Sea-Dweller 126603 Wrist Image - Hartgers Jewelers
Sea-Dweller 126603 Feature Image - Hartgers Jewelers

Ceramic Bezel and Luminescent Display

The 60-minute graduated, unidirectional rotatable bezel of the Sea-Dweller enables divers to precisely and safely monitor their dive and decompression times. It is equipped with a patented black Cerachrom bezel insert manufactured by Rolex in a virtually scratchproof ceramic whose color is unaffected by ultraviolet rays. The graduation is coated via PVD (Physical Vapour Deposition) with a thin layer of gold. The sleek black dial features large Chromalight hour markers and hands, filled with luminescent material that emits a long-lasting blue glow for excellent legibility in dark conditions.

Black dial

The black dial of the Sea-Dweller has the large hands and indices reserved for Rolex professional models. The dial bears the name Sea-Dweller inscribed in a yellow hue, echoing the color of the yellow gold. When the Sea-Dweller was updated in 2017, this lettering was in red, in reference to the original model. The innovative Chromalight display on the dial pushes back the boundaries of visibility in dark environments. Its distinctive blue glow lasts up to eight hours with a uniform luminosity, practically twice as long as that of standard luminescent materials.

Sea-Dweller 126603 Feature Image - Hartgers Jewelers
Sea-Dweller 126603 Feature Image - Hartgers Jewelers

Yellow Rolesor

Gold is coveted for its lustre and nobility. Steel reinforces strength and reliability. Together, they harmoniously combine the best of their properties. A true Rolex signature, Rolesor has featured on Rolex models since the early 1930s, and was trademarked as a name in 1933. It is one of the prominent pillars of the Oyster collection.

desktop-background-image - Hartgers Jewelers

Model Availability

All Rolex watches are assembled by hand with the utmost care to ensure exceptional quality. Such high standards naturally restrict Rolex production capacity and, at times, the demand for Rolex watches outpaces this capacity.

Therefore, the availability of certain models may be limited. New Rolex watches are exclusively sold by Official Rolex Jewelers, who receive regular deliveries and independently manage the allocation and sales of watches to customers.

Hartgers Jewelers is proud to be part of the worldwide network of Official Rolex Jewelers and can provide information on the availability of Rolex watches.

Symbols of the long shared history between Rolex and deep-sea explorers, the Sea-Dweller, Rolex Deepsea and Deepsea Challenge models are ul-tra-resistant professional divers' watches. The Sea-Dweller, launched in 1967, is waterproof to a depth of 1,220 metres (4,000 feet) - 610 metres (2,000 feet) originally. The Rolex Deepsea, un-veiled in 2008, withstand the pressure at a depth of 3900 metres (12,800 feet), and the Deepsea Challenge, presented in 2022, can reach a depth of 11,000 metres (36,090 feet).

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Keep exploring

Rolex At Hartgers Jewelers
Rolex Collection
New Watches 2023
Our Rolex History
Our Rolex Showroom
Our Rolex Team
Servicing Your Rolex
Rolex Watchmaking
Contact Us
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