Patek Philippe Calatrava ref 539 "Armadillo" pink on pink double signed Freccero in 18k pink goldTodays spotlight is on the rare and refined Patek Philippe Ref. 539 Calatrava, nicknamed "The Armadillo" by collectors. This is a rarely seen version of one of the brands most well known Calatrava models. The case design stands out for Patek Philippe, offering a more striking look compared to their usually understated style. In both construction and style, it shares a lot with the Ref. 96 Calatrava, produced during the same erabut this reference has a