Lot 320

Rolex "Oyster Perpetual Superlative Chronometer officially certified Cosmograph Daytona", Movement No. 60305, Case No. X699551, Ref. 16520, Cal. 4030, 41 mm, circa 1991
An automatic wristwatch "COSMOGRAPH DAYTONA", so called "Rolex Zenith Daytona" with original box, operating instructions, certificate and Rolex hang tag
Case: steel, screw back ref. 16500, steel bezel with tachy scale graduated to 400 units per hour, screwed "Triplock" winding crown, screwed chronograph pushers, steel "Oyster" bracelet ref. 78360 with endlinks stamped 503, marking M8 (!) with 14 bracelet elements. Dial: black.
This classic Rolex timepiece, reference 16520 with the red Daytona logo, has a black dial with applied indexes, stopwatch and a 30-minute and 12-hour counter; the watch is fitted with the legendary Zenith-based calibre 4030, and is called "Rolex Zenith Daytona". The bezel has an engraved tachy scale for direct reading of speed per hour.
Rolex only became the official sponsor of the 24-hour race in Daytona Beach in Florida in 1991, even though the race has been run since 1966. The winner of each category is presented with a Rolex Daytona timepiece.