Vacheron & Constantin, Geneve: An 18ct. gold perpetual calendar and moonphase automatic wristwatch, cream dial with raised baton numerals, subsidiary dials for the day, date and month combined with leap-year indicator, sector for the moon with lunar calendar, the case with snap-on back with makers mark No.570940 43031-1, signed movement with gold rim to the rotor, jewelled to the centre with thirty six jewels, adjusted to heat, cold, isochronism and to five positions, No.733168 with flexible gold bracelet and clasp