The Calatrava has become the signature model for Patek Philippe since its creation in 1932; its understated style has made it a timeless classic, providing elegance from generation to generation. This 3820 manually wound model comes in an 18 CT Yellow Gold casing with a shiny dark chestnut hand stitched alligator leather watch strap. The simplicity of this design makes for an elegant time piece; it comes with a year warranty.