Case: Four-body, massive, polished, the front cover with engraved foliate monogram, push button for the start/stop and return to zero functions of the chronograph at 12. Hinged gold cuvette.Dial: white enamel with Roman numerals, inner minutes track, outermost chronograph track with fifths of a second divisions and black Arabic five second/minute numerals, subsidiary dials for days of the week, date, months concentric with leap year indication , seconds and aperture for the phases of the moon. Pink gold Spade hands. Movement: 19''', matte gilt, straight-line lever escapement, cut bimetallic compensation balance blued steel Breguet balance spring with overcoil, swan-neck micrometer regulator.Case numbered.Dial, case and movement in very good condition.Diam. 60 mmNOTE: It is a wonderful example of one of Audemars Piguet's Complication pocket watches, meeting a level of superb quality characterizing the manufacture's timepieces.