As the inaugural Cosmograph Daytona reference launched in 1963, the ref. 6239 holds remarkable significance in Rolex's chronograph lineage. In production from approximately 1963 until 1976, the reference was available in stainless steel, 14K and 18K yellow gold and was the firm’s first chronograph with the tachometer scale engraved on the bezel.

This superb early example from circa 1967 fitted with a beautiful black matte dial and silvered sunken subsidiary dials with the highly desirable red ‘Daytona’ printed above the 6 o’clock subsidiary dial is undeniably charming. Interestingly, the visibility of the “T-SWISS-T” designation on this unusual dial is completely obstructed by the case. Only when the dial is carefully removed from the case that one is able to admire this subtle detail. An early bezel with 300 units per hour calibration and a gorgeous riveted Rolex Oyster bracelet completes the vintage aesthetic.

For the discerning collector, the appeal of the ref. 6239 transcends rarity or value. The present example transports the collector back to an era when the Daytona legend was still being written.