This Type of structure has a lengthy heritage at Patek, dating back again for the early 1960s Together with the ref. 2597 Travel Time Calatrava. As James Stacey described in his Hands-On While using the 5164R in 2019, the motion during the 2597 originated within the thoughts of Louis Cottier https://www.watchesworld.com/germanys-top-10-favourite-luxury-watches/