Long before the Daytona became Rolex's most celebrated chronograph, there was the ref. 6238. Produced between 1962 and 1968, the reference marked the final evolution of Rolex's pre-Daytona chronographs, combining the clean aesthetics of earlier models with the technical foundations that would directly lead to the launch of the Cosmograph Daytona in 1963. With its smooth steel bezel, restrained silver dial and manually wound Valjoux-based movement, the ref. 6238 has become one of the most important transitional references in Rolex history, offering collectors the final chapter before one of watchmaking's greatest icons was born.

Offered here is an exceptionally rare example dating to circa 1963 featuring one of the most coveted attributes in vintage Rolex collecting: a double-signed Cartier dial. Beneath the Rolex Chronograph signature sits the prestigious Cartier name, identifying the watch as one of the very small number retailed through Cartier NY. Further enhancing its desirability, the watch retains the original Cartier inventory number and date of sale stamped on the rear of one lug, a remarkable detail that directly links it to the famed retailer. Together, these rare retailer signatures elevate an already important reference into an exceptionally collectible example of vintage Rolex history.