
Jonathan Darracott
Global Head
Sold for £47,750 inc. premium
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Head of sale, Knightsbridge
Head of Department
Senior Cataloguer
In 1969 Rolex replaced the first Oyster Cosmograph 6240 with both the reference 6263 and 6265. Although similar in many aspects, the main differentiating factor between the two new references was the choice of bezel. The 6263 featured a black aluminium insert with printed tachymetre, whereas the 6265, as with the current lot, presented to the market a smooth engraved metal bezel.
The current example is fitted with a 'sigma dial', a nickname for watches that feature a lowercase letter sigma σ from the Greek alphabet below 6 o clock. This signifies the hour markers being made out of 18K white gold. Introduced in the 1970s, this feature can be found on watches as late as 2003.