Auction results have proved time and time again that co-signed Pateks are some of the most valuable to have left the Geneva atelier... This example also fills in the Calatrava's globe trotting credentials, having been retailed (and proudly signed on the dial) by one of Patek's most important historic retailers, Serpico Y Laino in Caracas. The large 18ct yellow gold case with "S&L" signed screw back houses Patek's earliest automatic cal.27-460 movement and is in superb condition. Presented with an extract from the Patek archive and covered by our 2 year warranty.