This 44mm Oyster watch is made of Oystersteel, equipped with a black Cerachrom ceramic unidirectional rotating outer ring and a classic black dial, designed for extreme deep-sea exploration. Equipped with a 3235 automatic winding movement, it is certified by the top observatory (±2 seconds/day accuracy) and has a power reserve of 70 hours. Its patented Ringlock system achieves an amazing waterproof depth of 3,900 meters (12,800 feet), and is equipped with a helium exhaust valve to ensure the safety of saturation diving. The Chromalight luminous display ensures clear reading in a completely dark environment, and the Oyster strap with the Glidelock extension system can easily adjust the length. This professional diving watch perfectly combines Rolex's cutting-edge technology and practical aesthetics.