Patek Philippe Calatrava 3919J Porcelain Dial 18k Yellow Gold Clous de ParisThe Patek Philippe Calatrava is widely regarded as one of the purest expressions of the classic dress watch and has become a cornerstone of 20th century watch design. Introduced in 1932 by Patek Philippe, the Calatrava emerged during a pivotal moment in the companys history, shortly after the Stern family acquired the manufacture amid the economic uncertainty of the Great Depression. The reference 3919 presented here was introduced during the mid