PATEK PHILIPPE | RETAILED BY GÜBELIN: CALATRAVA, REF 3520/10WHITE GOLD WRISTWATCHMADE IN 1973 

Dial: white Calibre: cal. 175 manual winding, 18 jewels Movement number: 1'174'208  Case: 18k white gold, screw-down back Case number: 2'722'421 Dimensions: 32mm Signed: case, dial and movement signed Accessories: Patek Philippe Extract from the Archives confirming date of sale on May 4th, 1973