Patek Philippe. A very beautiful Patek Philippe reference 2431 in 18k Yellow Gold with "flame lugs" retailed by Serpico y Laino Model: Calatrava Material: yellow gold Reference N°: 2431 Year: 1952 Case N°: 652528 Caliber: 12'120 Movement N°: 962971 Bracelet: leather strap Dimensions: 34 mm Accessories: The extract from the archives has been requested