Patek Philippe Calatrava 3520

Patek Philippe Calatrava Reference 3520 The Patek Philippe Calatrava Reference 3520 represents the brand's dress watch offering from the 1970s and 1980s production era. This reference falls within the Classic Dress Watch series, characterized by its compact proportions and traditional styling approach during its fifteen-year production run. The 33mm case is constructed in 18k yellow gold with a smooth bezel configuration. The watch features sapphire crystal and offers 25-meter water resistance. Power comes from the manual-winding Caliber 215 movement, providing 44 hours of power reserve. The timepiece is completed with a leather strap. Reference 3520 appeals to collectors seeking vintage Patek Philippe dress watches from the 1970-1985 period. The 33mm case size reflects the sizing preferences of its era, while the manual-winding movement and gold case construction align with traditional dress watch specifications. This reference offers entry into vintage Calatrava collecting within the specified production timeframe.