The Rolex Sea-Dweller 226659-0002 is a professional-grade diving watch that combines durability with elegance. Its 43mm Oystersteel case houses a black dial with Chromalight hour markers and hands, ensuring optimal legibility in low-light conditions. The unidirectional rotatable bezel features a black Cerachrom insert, allowing divers to monitor their dive and decompression times accurately. Powered by the self-winding Caliber 3235 movement, it offers a power reserve of approximately 70 hours. The watch is water-resistant up to 1,220 meters (4,000 feet) and comes with an Oyster bracelet for comfort and security.