Rolex. A Stainless Steel Chronograph Wristwatch with Bracelet and Black "Sigma" Dial
Rolex. A Stainless Steel Chronograph Wristwatch with Bracelet and Black "Sigma" Dial

Signed Rolex, Oyster Cosmograph, Daytona Model, Ref. 6263, Case No. 3'031'222, Circa 1971

Details
Rolex. A Stainless Steel Chronograph Wristwatch with Bracelet and Black "Sigma" Dial
Signed Rolex, Oyster Cosmograph, Daytona Model, Ref. 6263, Case No. 3'031'222, Circa 1971
Movement: Manual, Cal. 727, 17 jewels
Dial: Black, baton numerals with luminous accents, three silvered subsidiary dials
Case: Stainless steel, black bezel, screw back, two screw down buttons in the band, inside case back stamped 6262, 37mm diam.
Bracelet/Clasp: Rolex Oyster bracelet and deployant clasp, stamped 7835 and 2 72 and 361 to the endlinks, overall approximate length 8 inches
Accompanied By: A Rolex Guarantee dated November 15, 1972, a service receipt dated March 27, 2009, Rolex presentation box and a Rolex polishing cloth
Provenance
From the Original Owner

Lot Essay

The present reference 6263 features a dial that is known as a "Sigma" dial, indicated by two small Sigma symbols on either side of the "T Swiss T". The Sigma symbols indicate that the baton numerals and hands on a dial are made of gold, in this case white gold. Sigma dials were first seen on the reference 6240, and were nicknamed "Goute A Prior" by Italian collectors and originally referred to the union of three Rolex dial producers: Singer, Stern, and Beyeler. On later references, the Sigma came to refer to indices and hands in gold. This example is known as a "Tight Sigma" where the sigma signs are closer together and less common.

For a note on the "Goute A Prior", see Rolex Daytona, a legend is born by Carlo Pergola, Stefano Mazzariol, & Giovanni Doss, p. 82. An example of a reference 6263 with Sigma Dial is illustrated on p. 136.

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