Entering into the 1970s after almost a decade since the very first Cosmograph Daytona reference was introduced, Rolex released two new models via the refs. 6263 and 6265. Replacing its previous references, the new models features several upgrades. Most notably, both new references are now fitted with screw-down chronographic pushers to enhance the waterproof capabilities and robustness of the timepiece. While both references were practically the same with just the difference of the bezel, one metallic and one with a black insert, both new models are powered by the upgraded chronometer certified cal. 727. Later examples of the reference further featured an Oyster Triplock 700 crown.

The present example ref. 6263 with a black dial bearing an 6.2 million serial is offered in exceptional overall condition and is accompanied by its original Rolex guarantee and its service invoices. The dial especially is a case study in preservation, without losses or degradation to neither the graphics, nor the surface, nor the luminous material.
Nicknamed the “Big Red” due to its big and vibrant “DAYTONA” inscription above the 12-Hour register, the present timepiece also displays a Mark II bezel insert and Mark II pushers. As these details are upgraded to the Mark III version in the early 1980s - precisely the time when this piece was produced - this is one of the very last examples to bear the MKII details.