Swiss 18k gold open faced quarter repeating watch Circa 1869

Gold lever watch by Patek Philippe
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A yellow gold open faced quarter repeating watch, circa 1869. Frosted gilt jeweled lever movement, bimetallic balance, repeating with two hammers on two gongs, white enamel dial with hairlines, painted Roman numerals, blued steel spade hands, subsidiary seconds, outer minute track, 18k gold case, fluted case band, gold cuvette, slide to activate the minute repeater at 3, case and cuvette signed.
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Diameter: 47 mm
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Signed: Patek Philippe Genève
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Accompanied by a Patek Philippe Extract from the Archives confirming the year of manufacture in 1869, and sale on February 2nd, 1871.