The Patek Philippe Calatrava is a line of dress watches built by the premier Swiss watchmaker Patek Philippe. The model 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. The simplicity of this design makes for an elegant time piece. The pre-owned models below with the reference number 4850 are supplied with one year warranty.