[caption id="attachment_4571" align="alignnone" width="584"]Montblanc Heritage Chronometrie Quantieme Annuel Vasco Da Gama Limited Edition Montblanc Heritage Chronometrie Quantieme Annuel Vasco Da Gama Limited Edition[/caption]   The Montblanc Heritage Chronometrie Quantieme Annuel Vasco Da Gama Limited Edition is a limited edition of 238 pieces of Montblanc's annual calendar. It differs from the 'regular' edition by its unique moonphase display at 6:00, which is surrounded by the stars as they'd appear above the Cape of Good Hope as Vasco da Gama observed it in 1497 upon entering the Indian Ocean.  Wow! What exactly is an annual calendar? A 'simple' calendar on a mechanical wristwatch will need an adjustment with every month with less than 31 days. An annual calendar on the other hand only needs a manual adjustment once a year -at the end of February-, as its calendar mechanism is set to take the alternating 30-31 day length of the (regular) months into account. Ace Jewelers is Authorized Dealer for Montblanc. Montblanc is found at our Ace & Dik and Ace & Spyer boutiques and online in our www.AceJewelers.com eBoutique.