Swiss gold open faced minute repeating watch Circa 1903

Pink gold minute repeating watch
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A Swiss pink gold open faced keyless minute repeating watch, made in 1903, manual winding jeweled nickel lever movement, bimetallic compensation balance with Breguet spiral, minute repeating on two steel gongs.
White enamel dial, Arabic numerals, outer minute ring, fine gold hands, subsidiary seconds, 18k pink gold case with engraved monogram to the back cover, repeating slide to the band, 18k pink gold cuvette with inscription, case, dial and movement signed.
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Diameter: 48 mm
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Signed: Patek Philippe & Cie Geneva Switzerland
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With a Patek Philippe Extract from the Archives.