With the presence of other specialist auction houses, the Principality has become an important destination for watch collectors. Twice a year since it was founded, the Monte-Carlo Auction House, with assistance from expert Arnaud Perronet, has given an international slant to prestigious sales of catalogues featuring 300–400 meticulously reviewed and detailed lots, attracting a highly active local and international clientele. Some recent examples: a PATEK PHILIPPE, PERPETUAL CALENDAR SPLIT SECOND CHRONOGRAPH sold for €155,000, and a ROLEX GMT SARU for €90,000.