The "Junkers J1" Unique Version is dedicated to an airplane that took towards the skies just once and however represented a revolution. Strictly limited to 1915 parts. Along with the development of the first metal 5164A in 2011, Patek incorporated their Calibre 324 S C FUS, an automatic 4 Hz https://www.watchesworld.com/germanys-top-10-favourite-luxury-watches/