Pre-owned Vacheron Constantin Patrimony Perpetual Calendar 43031, in 18k yellow gold, with aftermarket strap. The Vacheron Constantin Perpetual Calendar, Ref. 43031 makes a spotless dress watch, beating horological intricacy and refinement. A circular finish of these, somewhat recessed, QP-dials – testifying a moonphase made from lapis lazuli, weekday, month and leap year indicators, and the date – ensures a stunning perception of depth, brightening up artistically when the light falls on it. First launched in 1984, the Vacheron Constantin ref. 43031 was one of the pieces which helped renew the interest in complicated watchmaking, following the decimation caused by the Quartz Crisis. Alongside similar pieces from Audemars Piguet and Patek Philippe, it is one of the few ultra-thin, automatic perpetual calendars introduced during this period. The Vacheron Constantin Perpetual Calendar, Ref. 43031 houses an automatic movement. Brand: Vacheron Constantin Model: Patrimony Perpetual Calendar Reference: 43031 Case Material: 18k Gold Movement: Automatic Dimension: 36 Mm Dial: White Bezel: 18k Gold Crystal: Sapphire Bracelet Type: Strap Bracelet Material: Leather Bracelet Lenght: 17 Cm Original Box: No Original Papers: No Year: 1992 Condition: Very Good #ExclusiveWatches