Rolex. A very rare and early stainless steel chronograph wristwatch with "underline double Swiss" dial and bezel calibrated for 300 units
Prospective buyers should be aware that the import… Read more
Rolex. A very rare and early stainless steel chronograph wristwatch with "underline double Swiss" dial and bezel calibrated for 300 units


Rolex. A very rare and early stainless steel chronograph wristwatch with "underline double Swiss" dial and bezel calibrated for 300 units
Signed Rolex, Cosmograph, Daytona model, ref. 6239, case no. 923'042, manufactured in 1963
Cal. 72B nickel-finished lever movement, 17 jewels, silvered matte dial, applied baton numerals with luminous accents, luminous hands, three engine-turned black subsidiary dials for constant seconds, 30 minutes and 12 hours registers, tonneau-shaped water-resistant-type case, blank bezel calibrated for 300 units per hour and 225, 250 and 275 indications, engraved inscription C.D. 12.25.64 L.E.D. to the screw back, screw down crown, two round chronograph buttons in the band, stainless steel Rolex USA bracelet, deployant clasp stamped 7-58, case, dial and movement signed
37 mm. diam.
Special notice

Prospective buyers should be aware that the importation of Rolex watches into the United States is highly restricted. Rolex watches may not be shipped into the USA and can only be imported personally. Generally a buyer may import only one watch into the USA. For further information please contact our specialists in charge of the sale. Please note other countries may have comparable import restrictions for luxury watches.

Lot Essay

The present watch is certainly one of the most attractive Daytonas for any aficionado of sport chronographs: a reference 6239 from the very first series of this model, showing the distinctive features found only on the earliest examples:

-the dial without the designation "Daytona" as found on later series
-a line underneath the "MOG" of the "Cosmograph" writing
-the double Swiss designation, e.g. "Swiss" printed visibly between the 12 hour register dial and the 6 o'clock index, a second "Swiss" below the 60 seconds scale to the edge of the dial, hardly visible while the dial is mounted onto the watch
-the subsidiary dials with sunk engine-turned centres surrounded by a blank raised outer ring for the indexes
-the blank metal bezel calibrated for one unit up to 120, intervals of 2 units from 120 to 150 and intermediate calibration 225, 250 and 275
-the case back with reference number 6238, a common feature for the earliest Cosmographs

Made in 1963, the year of introduction of the model, the rarity of this so-called "Underline Double Swiss" Cosmograph wristwatch is furthermore enhanced by its very well preserved, original condition and the slight colour change of the black subsidiary dials which over the years have taken a subtle hint of chocolate brown.

Reference 6239, the very first model of the celebrated "Daytona" series, succeeded reference 6238 and could be found in sales catalogues in Europe as of 1964. It is thought though that the model was available in the US already in 1963. Available in stainless steel, 14K and 18K gold, reference 6239 was the firm's first chronograph with the tachometre scale engraved on the bezel and the subsidiary dials printed in a different color than the main dial for better readability. The dials of the early models featured only the designation "Cosmograph", referring to the outer space travels of the early 60s. The "Daytona" was added on later series to mark Rolex's sponsorship of the renowned NASCAR stock car race.

For detailed descriptions and illustrations of the dial and bezel variations of reference 6239 see Rolex Daytona - a legend is born by Carlo Pergola, Stefano Mazzariol, Giovanni Dosso, pp. 44 - 61. Different versions of reference 6239 in regard to case material and dial layout are furthermore described and illustrated in I Cronografi Rolex - La Leggenda, Pucci Papaleo Editore, pp. 296-303.

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