Vacheron & Constantin: A 1950's pink gold triple calendar wristwatch in circular case with stepped bezel and downturned scalloped lugs, the two-tone gilt dial with raised Roman ¼-hour marks and dagger five minute divisions, outer date ring with central date hand, subsidiary seconds, apertures for day and month, the snap on back with makers mark numbered 294173, the signed movement jewelled to the centre with seventeen jewels, adjusted to temperatures, numbered 457902, with flexible pink gold bracelet and deployant clasp