The A. Lange & Söhne 1815 Rattrapante Perpetual Calendar was presented at the SIHH 2013 and was awarded two prizes at the Grand Prix d'Horlogerie de Genève the same year —not only it received the Grande Complication Prize but also the Public Prize. This fascinating timepiece available in Platinum or Pink Gold —like the one we are reviewing here— is not only amazing from an horological standpoint but also extraordinary when it comes to its visual appeal and looks.