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

Poitevin. A fine and rare 18K gold hunter case minute repeating perpetual calendar chronograph keyless lever watch with phases of the moon
Signed Mons. B. Poitevin & V. Lejeune, L. Gironde Succs., 22, rue Vivienne, Paris, No. 60405, case no. 44193, circa 1900
With nickel-finished fully jewelled lever movement, bimetallic compensation balance, swan neck regulator, minute repeating on two polished steel hammers, gold cuvette, the white enamel dial with Arabic numerals, outer five minute divisions, gold moon-style hands, four subsidiary dials indicating month combined with leap year indicator, day, date and phases of the moon combined with lunar calendar and constant seconds, in heavy engine-turned case with raised Art Nouveau decorated initials AB to the hinged back, repeating slide and chronograph button in the band, case numbered, cuvette signed and numbered
54 mm. diam.