Rolex Deepsea Sea-Dweller 44mm 126660 Luxury Dive Watch - Professional Scuba Diving & Deep Sea Exploration

44mm oystersteel case with helium escape valve, screw-down back, screw-down crown, unidirectional rotating bezel with scratch-resistant ceramic Cerachrom insert and platinum coated 60-minute graduations and numerals, domed 5.5mm thick scratch-resistant crystal, d-blue dial with gradient from deep-blue to black, Rolex calibre 3235 perpetual self-winding movement, approximately 70 hours of power reserve, Oyster bracelet with flat three-piece links, folding Oysterlock safety buckle with Rolex glidelock extension system and fliplock extension link. Waterproof to 3,900 meters (12,800 feet). Redesigned for Baselworld 2018 with updated case sies, lugs, broader bracelet and clasp, and calibre 3235 movement.