This Type of structure has an extended background at Patek, relationship again towards the early 1960s with the ref. 2597 Travel Time Calatrava. As James Stacey stated in his Palms-On with the 5164R in 2019, the movement while in the 2597 originated from the head of Louis Cottier – The https://www.watchesworld.com/germanys-top-10-favourite-luxury-watches/