Rolex Cosmograph Daytona 16520

Reference 16520 is a landmark model in Rolex history, representing the first automatic stainless steel Daytona. Produced from 1988 to 2000, it is powered by the Caliber 4030, a modified Zenith El Primero movement. This reference single-handedly revitalized the Daytona line, creating unprecedented demand. Key technical variants for collectors include the early “floating dial,” the “inverted 6” on the 6-o’clock sub-dial, and the transition from tritium to LumiNova lume. Its significance as a cultural and horological icon cannot be overstated.