A few days ago, we showed you a new watch introduced by A. Lange & Söhne, the 1815 “Cuvette” Limited Edition. Well, this was not the only novelty the Saxonia-based brand had to show us in this month of September 2017. Be prepared, because what Lange just launched is both impressive, complex, demonstrative, rare and superbly executed. Here is the “Handwerkskunst” edition of the highly respectable A. Lange & Söhne 1815 Rattrapante Perpetual Calendar. And those who are experienced with the brand know what is hidden behind this quite barbarian German word…