The Patek Philippe references 4856 and 4857 represent elegant expressions of the manufacture's traditional ladies' Calatrava collection, combining timeless design with the refined craftsmanship associated with Patek Philippe's dress watches. Produced during the late twentieth century, these references feature classic round cases, delicate proportions and manually wound movements, reflecting the understated elegance that has long defined the Calatrava family. Rather than focusing on complications or contemporary styling, the 4856 and 4857 celebrate purity of form, exceptional finishing and the harmonious proportions expected from a Patek Philippe ladies' timepiece.

Available in precious metals and often featuring refined dial designs and gem-set details, the 4856 and 4857 occupy an important position in the evolution of modern ladies' Calatravas. They represent the period before Patek Philippe expanded its women's collections into more contemporary designs such as the Twenty~4 and Aquanaut Luce, preserving the traditional values of Genevan dress watchmaking in a smaller format. Today, these references are appreciated by collectors for their elegance, rarity and their role in continuing the long heritage of feminine Calatrava watches.