Ref. 2540 pink gold and rare pink gold dial with black enamel markers. Notice the hand detail of pink gold center and black enamel. The parabolic shape crystal to match the case. Pink gold was preferred by South American clients, and many of them were sold by
Serpico Y Laino including this one. This also uses the 12-600 Automatic Calibre-one of the finest Patek movement aside from the complications.