A new authentic Rolex Cosmograph Daytona model M126509-003. Features include an automatic mechanical perpetual chronograph movement powered by the Caliber 4131 with a 72-hour power reserve; screw-down case back, middle case bezel and winding crown; fixed bezel with engraved tachymetric scale in white gold; steel band case with brushed and polished white gold finish; black dial with luminous white gold stick hour markers and minute markers along with three sub-dials displaying 30 minutes, 60 seconds, and 12 hours respectively; sapphire crystal scratch resistant bezel insert and display window; round shape measuring 40mm in diameter; water resistance up to 100 meters (approx. 330 feet); includes a standard 5-year Rolex warranty.