Rolex Cosmograph Daytona “Millerighe”

Introduced circa 1965, the Rolex Cosmograph Daytona ref. 6240 is widely regarded as the pivotal reference that reshaped the Daytona lineage: the first to feature screw-down chronograph pushers, a technical step that defined the more robust identity later crystallised in the celebrated 6263 and 6265. Produced exclusively in stainless steel and for a notably short run of roughly four years, the 6240 is also distinguished by its black acrylic tachymeter bezel—an unmistakable transitional signature that separates it from the earlier metal-bezel 6239 and places it among the most closely studied early Daytonas.

This example sits at the high end of collectability due to a convergence of period-correct first-series traits. It falls in the early 1.2 million serial range and is fitted with the first-generation manual-wind Calibre 722. Most importantly, it retains the rare “Millerighe” screw-down pushers, identified by their fine, deep knurling—components that are exceptionally difficult to find today in correct, contemporaneous configuration and which materially elevate both historical integrity and market desirability.

The silver “Big Daytona” dial further reinforces its early status, featuring the enlarged, well-proportioned Daytona signature and the notable absence of the word “Oyster” despite the presence of water-resistant pushers—an early transitional detail prized by seasoned collectors. The “Rolex / Cosmograph / Daytona” printing appears crisp and balanced, consistent with first-year production characteristics. For investors and collectors alike, early Daytonas are a detail-driven market, and references like the 6240—especially in first-series, correct-component guise—have demonstrated enduring international demand. Public market observations in recent years commonly place standard 6240 examples around €70,000–€100,000 depending on condition and correctness, while first-series pieces with correct Millerighe pushers and coherent period configuration can command a substantial premium in private transactions and at auction. Within the manual-wind Daytona universe, the 6240 remains a cornerstone reference where authenticity, transitional rarity, and component correctness converge into lasting significance.