Swiss gold perpetual calendar, moon phase watch Circa 1880

Gold half hunting lever watch
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A yellow gold half hunting cased perpetual calendar keyless watch with moon phases circa 1880. Jewelled moustache lever movement, bimetallic compensation balance, wolf’s tooth winding, numbered under the dial, gold cuvette, white enamel dial, Roman numerals, subsidiary dials for day, month, subsidiary seconds combined with date in French and moon phases, later associated gold case, central aperture surrounded by blue enamel Roman numerals, dial signed, movement numbered, later associated case hallmarked London 1908, maker’s mark F.T.
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Diameter: 52 mm
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Signed: Patek Philippe Genève
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Some calendar wheel work lacking