Rolex Cosmograph Daytona Ref. 6239

First introduced in 1963, the Rolex Cosmograph Daytona Ref. 6239 was designed with motorsport precision in mind, marking the beginning of the brand’s now-iconic racing chronograph legacy. With its contrasting subdials and steel tachymeter bezel, the 6239 quickly became a favorite among drivers and collectors alike. At Grey and Patina, we value the significance of such references that have shaped horological design and enduring craftsmanship.