Vacheron Constantin Fiftysix day-date

The Fiftysix Day-Date (reference 4400E/000A-B437) is a 40mm round steel case watch with a silver dial and sapphire crystal. It runs on the automatic Vacheron Constantin calibre 2475 SC/2 and displays date and weekday, with a sapphire display back. Water resistance is rated to 30 metres. The movement bears the Poinçon de Genève, a hallmark established by the Republic and Canton of Geneva in 1886 to certify watchmaking craftsmanship and provenance.