If we were judging by rarity alone, we could crown the Vacheron the winner and https://v.gd/7k4qdA link go home. Vacheron estimates it produced between 2,000 and https://is.gd/ris5fe link 2,500 perpetual calendars from 1983 until 2006 when it discontinued https://v.gd/jBWLwr link its original perpetual calendar references, about a quarter of Patek's or AP's production.

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