Rolex. A Fine Stainless Steel Chronograph Wristwatch with Black Sigma Dial and Bracelet
Property from the Original Family
Rolex. A Fine Stainless Steel Chronograph Wristwatch with Black Sigma Dial and Bracelet

SIGNED ROLEX, OYSTER COSMOGRAPH, REF. 6263, CASE NO. 4'127'989, CIRCA 1974

Details
Rolex. A Fine Stainless Steel Chronograph Wristwatch with Black Sigma Dial and Bracelet
Signed Rolex, Oyster Cosmograph, Ref. 6263, Case No. 4'127'989, Circa 1974
Cal. 727 mechanical movement, 17 jewels, black dial, applied white gold baton numerals with luminous accents, luminous white gold hands, outer minute divisions, three silvered engine-turned subsidiary dials for 12 hour and 30 minute registers and constant seconds, tonneau-shaped water-resistant-type case, black bezel calibrated for 200 units, screw down crown, two screw down chronograph buttons in the band, screw back, original stainless steel Rolex Jubilee bracelet and deployant clasp, overall approximate length 6.0 inches, case, dial, and movement signed
37.5mm diam.

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Lot Essay

Accompanied by Rolex product literature.

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.
The present watch also features the original Jubilee bracelet, with endpieces stamped "74". The "74" endpieces on a Jubliee bracelet were only for the Daytona model.

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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