Montblanc Heritage Chronométrie Quantième Annuel Vasco da Gama – The annual calendar mechanism, which francophone watchmakers call a “Quantième Annuel”, automatically “knows” the lengths of all months from March to January. The watch asks for special attention only on the last midnight in February. A manual correction is needed for the switch from the 28th or 29th of February to the 1st of March.
The Millenary 