Rolex Reference 6263 'Sigma Dial' Daytona | A stainless steel chronograph wristwatch, Circa 1972 | 勞力士 型號 6263 'Sigma Dial' Daytona 精鋼計時腕錶，製作年份約 1972

Rolex

Reference 6263 'Sigma Dial' Daytona
A stainless steel chronograph wristwatch, Circa 1972

勞力士 型號 6263 'Sigma Dial' Daytona
精鋼計時腕錶，製作年份約 1972

Dial: black
Caliber: cal. 727 mechanical, 17 jewels
Case: stainless steel, screw down case back
Case number: 3'365'481, inner case back stamped 6262
Size: 37.5 mm diameter
Signed: case, dial and movement
Box: no
Papers: no

Condition Report:
Case: The case is in overall very good condition with light surface wear throughout and has previous signs of light polish. Please note that the strap and buckle are generic and not signed Rolex.

Dial: The dial is in good condition. Dark spotting visible in the 6 and 9 o'clock registers. There are signs of discoloration to the dial between 10-11 o'clock, around the left side of the 9 o'clock register, around the bottom of the 6 o'clock register, and around the outer perimeter of between 1-3 o'clock. The luminous material on the plots and hands have darkened over time. Lume plot missing at 3 o'clock.

Movement: The chronograph is not operating fully and would require service at the buyer's discretion. The movement is running at time of cataloging, however it was not tested for the accuracy of time or duration of the power reserve and may need service at the buyer's discretion. Please note that Sotheby's does not guarantee the future working of the movement.

Catalogue Note:
The last in the long lineage of the hand-wound Rolex Daytonas were the references 6263 and 6265, produced from 1969 to 1988. The former came with a black acrylic bezel, as in this instance, and the latter with a stainless-steel bezel. They are regarded as the ultimate evolution of the vintage Daytona models. 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 and 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. The present piece is fitted with its highly sought-after original Sigma dial. This refers to the addition of the Greek letter sigma σ T SWISS T σ, at 6 o'clock. It was used by the Swiss watch industry to denote the use of gold parts to the dial.