Rare Swiss gold hunting cased complicated watch Circa 1909

Gold minute repeating chronograph by Audemars Piguet
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A fine and rare Swiss 18 carat gold hunting cased minute repeating perpetual calendar chronograph keyless lever watch with moon phases, circa 1909. Fully jewelled nickel finished lever movement, bimetallic compensation balance, swan neck regulator, wolf tooth winding, minute repeating on two polished steel hammers onto a gong. Engraved gold cuvette. White enamel dial with Roman numerals, outer Arabic five minute divisions, blued steel spade hands, four subsidiary dials for month combined with leap year indicator, day, date and phases of the moon combined with constant seconds. Plain case, repeating slide and chronograph button in the band. Case and movement numbered, cuvette signed and numbered.
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Diameter: 54 mm
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Signed: Ls Audemars Brassus Suisse