Swiss pink gold quarter repeating watch with chronograph Circa 1900

Gold watch with long chain and ornate mosaic fob
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A fine and rare Swiss, 18K pink gold keyless, quarter repeating pocket watch with chronograph and 30-minute register, circa 1900. Accompanied by an ornate mosaic fob.
A polished case, chronograph activated by a pushbutton in the crown, a chain and fob depicting four doves with flowers and the Chi-Rho symbol. Hinged gold cuvette.  Enamel dial with Breguet numerals, outer minute track and concentric fifths of a second division, Arabic five minute/ seconds numerals, subsidiary seconds, 30-minute register. Gold feuille hands. A gilt movement, blued steel Breguet balance spring, swanneck micrometre regulator, repeating on gongs activated by a slide on the band. Case, dial, and movement signed.
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Diameter: 53 mm
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Signed: Vacheron & Constantin  Genève
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The case with some dents and the dial is slightly oxidized.