New Authentic Rolex Cosmograph Daytona Stainless Steel (Oystersteel) and Yellow Gold Rolesor combination case, black dial with luminescent yellow gold hands and stick hour markers, three sub-dials displaying 60 seconds, 30 minutes, and 12 hours. Powered by the Caliber 4131 self-winding mechanical chronograph movement with a 72-hour power reserve. Features screw-down crown, scratch-resistant sapphire crystal, fixed yellow gold bezel engraved tachymetric scale, round monobloc middle case in Oystersteel and Yellow Gold, screw-down case back, water resistance to 100 meters (330 feet), includes the original box and papers. New model for 2023.