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Antiquorum’s Record! A splendid ultra-complicated watch of Henri Grandjean, founder of the Neuchâtel Observatory, hit the auctions market
It rocked! This gold pocket watch with eight complications rarely combined in a single piece is one of the most complex ever made by Henri Grandjean. This chronometric treasure was back…
Le cadran, par le Dr. Helmut CROTT
The work of a lifetime, the book “Le Cadran” by Dr. Helmut Crott (edited by Joël A. Grandjean), the history of the dial in the 20th century, the prestigious history of the Stern dials and of a family that took over the Patek Philippe brand
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