Reference 16518 Daytona | A yellow gold automatic chronograph wristwatch, Circa 1999 Reference 16518 Daytona A yellow gold automatic chronograph wristwatch, Circa 1999 Dial: white Caliber: cal. 4030 automatic, 31 jewels Movement number: 147’513 Case: 18k yellow gold, screw down case back Case number: T’764’078 Closure: 18k yellow gold Rolex folding clasp Size: 40 mm diameter Signed: case, dial and movement Box: yes Papers: yes Accessories: Rolex presentation box with outer packaging, Warranty papers dated August 23rd, 1999, original sales receipt dated August 23rd, 1999, booklets, two hang tags, bezel protector, and additional strap