The Calatrava, first created in the early 1930’s, is one of their most popular models. With over 10 models in the Calatrava range, their sleekness and elegance is a true account of the Patek Philippe’s style and cleverly stay on trend. Their design ultimately stay the same, but their internal complications have been developed over time to encompass modern developments such as the automatic movements.
That is why they do not lose their worth. Buying a Patek Philippe is an investment, not a cost.