Inside The Manufacture The Zenith Manufacture's Hidden History
In 1982, Zenith was approached by Rolex, who were looking for a self-winding chronograph movement for the Daytona. In 1988, the first automatic Daytona was introduced, the reference 16520, which used a version of the El Primero running at 28,800 vph. That Zenith was able to resume production and accept the ten-year contract from …