The Rolex Sea-Dweller 126603 seamlessly blends professional-grade functionality with luxurious design. This 43mm case combines stainless steel and 18k yellow gold, offering exceptional durability and an elevated aesthetic. Designed for serious divers, it features a unidirectional ceramic bezel with a 60-minute graduated scale, providing precise dive timing.

The black dial is adorned with Chromalight hour markers and hands, ensuring optimal legibility in low-light conditions. A discreet date window at 3 o’clock, magnified by a Cyclops lens, adds everyday practicality. The helium escape valve, a hallmark of the Sea-Dweller line, ensures functionality during professional saturation dives.

Powered by the Caliber 3235, this model offers a robust 70-hour power reserve and exceptional timekeeping accuracy. Water-resistant up to 1,220 meters (4,000 feet), the 126603 is built for extreme underwater adventures while maintaining a refined two-tone look for versatility on land. A striking choice for collectors seeking performance and style.