Swiss yellow and pink gold watch in the form of a scallop Circa 1900

Gold full hunting cased cylinder 
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An unusual Swiss, full hunter, 18k yellow and pink gold lady’s pendant watch in the form of a scallop, circa 1900. A solid case, hinged, mirrored front and reverse in textured sea scallop design with applied pink gold flowers, hinged gold cuvette. Circular, white enamel dial with radial Roman numerals and outer minute dots. Blued steel hands. A bar calibre, rhodium plated movement, Geneva striping decoration, 15 jewels, cylinder escapement, plain three-arm balance, blued steel flat hairspring, index regulator.
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Thickness: 11 mm
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Diameter: 36 mm
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Signed: No Name
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The case has some lacking elements.