Extreme Performance Engineered for the depths, the Rolex Deepsea is a professional divers watch that exemplifies the brands commitment to underwater exploration. With its robust construction and innovative Ringlock System, the Deepsea is capable of withstanding the immense pressures of the deep ocean, making it a trusted companion for those who venture far below the surface. Built for the Abyss This reference 116660 features a striking blue dial that fades to black, housed within a 44mm Oystersteel case. The unidirectional rotatable bezel with a 60-minute graduated Cerachrom insert allows for precise dive timing, while the Oyster bracelet is fitted with a Fliplock extension and Rolex Glidelock system for secure wear over a wetsuit. Powered by the calibre 3135 automatic movement, this model offers a 48-hour power reserve and exceptional reliability.