18ct Yellow Gold Patek Philippe Calatrava 5120/1J-001. Automatic calibre 240/164 movement. 27 jewels. Case diameter 35mm. 18ct yellow gold case with the unique hand guilloché hobnail pattern. Water resistant to 30 meters. Silver dial with yellow gold index hour markers. 48 hour power reserve. 18ct gold bracelet with folding clasp. Box and papers dated March 2007. Our reference S19031.