This Sort of style has a protracted historical past at Patek, courting back towards the early 1960s with the ref. 2597 Travel Time Calatrava. As James Stacey outlined in his Hands-On With all the 5164R in 2019, the motion in the 2597 originated through the head of Louis Cottier – https://www.watchesworld.com/germanys-top-10-favourite-luxury-watches/