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From Nature magazine Francis Collins, director of the U.S.

Vacheron Constantin’s groundbreaking Quai de l’Ile line-up has added a handsome new face with the Retrograde Annual Calendar. To power its new piece, Vacheron developed the Calibre 2460 QRA movement, which meets the stringent requirements of the Hallmark of Geneva. Compared to a simple calendar, which is programmed for 31-day ...

Vacheron Constantin’s groundbreaking Quai de l’Ile line-up has added a handsome new face with the Retrograde Annual Calendar. To power its new piece, Vacheron developed the Calibre 2460 QRA movement, which meets the stringent requirements of the Hallmark of Geneva. Compared to a simple calendar, which is programmed for 31-day ...