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ROLEX Sea-Dweller, Reference 126603, 18k Yellow Gold and Stainless Steel, Box and Papers, Year 2021, Excellent, Full Set

Introduced in 2019, this reference marked the first time in the Sea-Dweller's history that precious metal was used in a commercially available model, bringing genuine two-tone elegance to one of Rolex's most serious saturation diving tools.

The 43mm case combines corrosion-resistant Oystersteel with 18k yellow gold accents on the unidirectional bezel, winding crown and center bracelet links, rated to a genuine 1,220 meters with a helium escape valve for saturation diving.

The black dial carries oversized Chromalight-filled hour markers and hands for underwater legibility, with the "Sea-Dweller" name rendered in gold to echo the two-tone case, plus a Cyclops-magnified date window at three o’clock.

Inside runs the caliber 3235, Rolex's own automatic movement with a Chronergy escapement, delivering roughly 70 hours of power reserve and full chronometer certification.

This example is offered as in:

- Excellent condition

- Full set with box and papers

"Rolex's toughest diver dressed in gold for the first time, saturation-rated capability with a genuinely elegant twist."