Swiss gold platinum and diamond-set brooch watch Circa 1900

Gold lever watch with diamond-set brooch
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A fine and elegant Swiss, 18 Carat gold, platinum and diamond-set, lady’s keyless pendant watch with a silver and gold rose-cut diamond-set brooch, circa 1900. A laurel chased bezel, the back cover engine-turned and with an applied lattice and flower border, applied platinum concentric ovals set with rose-cut diamonds, a larger pear shaped and round diamond in the upper centre, the brooch set with large rose-cut diamonds in silver settings on a gold bar pin. White enamel dial with Arabic numerals, outer minute track, subsidiary seconds. Gold Breguet hands. A matte gilt movement, 15 jewels, straight-line lever escapement, cut bimetallic compensation balance, blued steel Breguet balance spring, index regulator. Movement signed.
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Diameter: 29 mm
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Signed: LeCoultre & Co.  Swiss
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The dial is slightly chipped.