Audemars Piguet. A fine and rare 18K gold hunter case minute repeating perpetual calendar chronograph keyless lever watch with phases of the moon

Audemars Piguet. A fine and rare 18K gold hunter case minute repeating perpetual calendar chronograph keyless lever watch with phases of the moon
Audemars, Piguet & Co., Brassus, movement no. 11'673, case no. 11'673 and 187'361, manufactured in 1909
Cal. 18''' SMCCQS 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, 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, circular case, repeating slide and chronograph button in the band, case numbered, cuvette signed and numbered
54 mm. diam.