Since 1974, Christiaan van der Klaauw has translated the wonders of the cosmos into mechanical art, pioneering timepieces defined by astronomical complications. From intricate planetariums to precise moon phases, each numbered watch is crafted in its atelier with uncompromising mastery. The only maison devoted entirely to astronomical watchmaking, and winner of the 2021 Grand Prix d’Horlogerie de Genève (GPHG) Calendar and Astronomy Award, it stands as a singular authority in haute horlogerie.