Superseding references 6262 and 6264, and following the success of the experimental 6240, the 6263 and 6265 models are further distinguished from their preceding references by the introduction of larger, screw-down chronograph pushers and winding crown, the addition of 'Oyster' signed to the dial. The introduction of these attributes marked the standard for all future references and are still utilised on Daytona models to this day.
An interesting and sought after feature can be found to the base of the dial beneath six. On the present lot, where one would usually expect to find T Swiss T, we see instead the addition of the Greek letter sigma; σ T SWISS T σ. Although the exact dates are yet to be defined these, 'Sigma' dials were most likely introduced from 1970 onwards and used to denote the use of gold parts to the dial - in this instance, the indexes.
This watch is presented at auction for the first time having been kept in the family on the original owner.
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