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CASEBACKS
Gold Casebacks
Both 14K and 18K casebacks are identical in shape, the only difference being in the gold engravings inside. A different gold alloy can result in a different hue, making 14K casebacks more “bronze” in color.
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14K model markings
• 14K 0,585 (or 585 in late production). This corresponds to the number of carats and the ratio of pure gold.
• A squirrel, which is the Swiss hallmark for 14K gold.
• The Poinçon de Maître (maker’s mark) indicating the case manufacturer, in this instance a hammer head with the number 136, corresponding to C.R. Spillmann.
18K model markings
• 18K 0,750 (or 750 in late production): this corresponds to the number of carats and the ratio of pure gold.
• The head of Helvetia (the female personification of the nation), which is the Swiss hallmark for 18K gold.
• Maker’s mark 136.
Similar to steel versions, special order examples bear the serial number inside the caseback and may have a special engraving.
An example would be watches ordered by the Sultanate of Oman, displaying the Khanjar and also the name of the British retailer Asprey on the caseback.
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This chapter presents a rich gallery of the most representative manual winding Daytonas from 1963 to 1988, although it is not exhaustive given the near-infinite number of variants.
The following pages show what the authors believe are top-quality, iconic examples displaying the breadth and variety of the manual winding Cosmograph Daytona.
The next pages are classified as follows:
• Steel classic Cosmograph Daytona
• Yellow Gold classic Cosmograph Daytona
• Paul Newman Cosmograph Daytona
• Special Cosmograph Daytona.