Swiss gold, diamond and ruby lady’s brooch watch Circa 1900

Gold watch with detachable brooch
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An outstanding Swiss, keyless, 18K gold, diamond and ruby lady’s pendant watch with detachable gold, diamond and ruby bow shaped brooch, circa 1900. The back set with 27 diamonds, and three rubies, a hinged gold cuvette, a white enamel dial with radial blue Arabic numerals, and an outer dot minute division. Gold Louis XV hands. A rhodium-plated movement, straight-line lever escapement, cut bimetallic balance, self-compensating Breguet balance spring and an index regulator.
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Diameter: 27 mm
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Signed: Vacheron & Constantin  Genève