PATEK PHILIPPE. CALATRAVA. REF. 3468. 1950s. Flat wristwatch in 18K (750) yellow gold on leather. One-piece round case with engraving on the back: M.A. 15 May 59. Crown decorated with the Calatrava Cross. Silver sigma dial with applied gold indexes. Mechanical movement, cal. 23-300, decorated with false marks, double Geneva hallmarks. Leather strap with gold pin buckle signed PP. Numbered 782088/2801935 - Diameter: 33 mm - Gross weight: 32 g