Non-Sigma 6263 Rolex Cosmograph Daytona

Rolex-Cosmograph-Daytona-6263-Non-Sigma

Today we’re getting a little nerdy within steel sport Rolex. 6263s can be found in a wide range of configurations, even for an early sport Rolex reference. Of those that don’t have Daytona in above above the 6 o’clock subdial, most are what are called ‘sigma’ dials. Sigmas either side of Swiss Made indicate precious…

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