The Rolex Yacht-Master 42 Ref. 226627 is a landmark timepiece that redefines the brand’s nautical collection, marking the introduction of a full RLX titanium construction to the line for the first time in this 42mm case . This extraordinary material, a grade 5 titanium alloy, makes the watch exceptionally lightweight—weighing approximately 100 grams—while offering superior mechanical strength and resistance to corrosion, making it ideal for the active seafarer . The intense black dial features Rolex’s signature Chromalight display with luminous hour markers and broad hands for exceptional legibility in any condition . A matching matte black Cerachrom bezel with polished raised numerals and graduations provides the essential 60-minute bidirectional rotating timing function central to the Yacht-Master’s yachting heritage . At its heart beats the manufacture Caliber 3235, a COSC-certified Superlative Chronometer automatic movement delivering a robust 70-hour power reserve and featuring Rolex’s patented Chronergy escapement for superior efficiency . The watch is secured on a matching RLX titanium Oyster bracelet with an Oysterlock safety clasp and Easylink 5mm comfort extension link . With 100 meters of water resistance and a screw-down Triplock crown, the Yacht-Master 42 in titanium offers a stealthy, modern, and highly wearable expression of Rolex’s technical capabilities, perfectly positioned for collectors seeking a lighter, more understated contemporary sports icon . Key specifications: 42mm RLX titanium case; intense black dial with Chromalight display; Caliber 3235 automatic movement; 70-hour power reserve; RLX titanium Oyster bracelet; 100m water resistance; matte black Cerachrom bidirectional bezel.