This Kind of structure has a long history at Patek, dating back to the early 1960s Along with the ref. 2597 Travel Time Calatrava. As James Stacey mentioned in his Fingers-On Using the 5164R in 2019, the motion in the 2597 originated from your intellect of Louis Cottier – The https://www.watchesworld.com/germanys-top-10-favourite-luxury-watches/