Accompanied by a Patek Philippe Certificate of Origin dated February 4th, 2013, product literature, and leather envelope. Further accompanied by a Patek Philippe veneered presentation box.
Reference 5131 was launched in 2008 in yellow gold and in 2009 in white gold. The present watch in yellow gold represents Americas, Europe, and Africa, whereas the later white gold model represents Europe, Africa, Asia, and Oceania. Reference 5131 is the successor of reference 5130 and shows three notable differences: use of a distinguishable closionné enamel dial, the names of the 24 cities are displayed in Italic type and the signature Patek Philippe and company location Genève are engraved on the bezel. Ony two or three enameller artists are able to produce these rare dials and together they can only deliver 30-40 dials of each color every year. In 2012 a special and unique reference 5131 was produced with a view of he Geneva lake.
In production only from 2008 to 2012, reference 5131 is equipped with the ultra-thin automatic calibre 240 HU. (HU stands for Heure Universelle, which is French for World Time). It features an eccentric 22K gold micro-rotor recessed in the back plate.
A modern world time wristwatch, the mechanism harks back to the 1930s when talented Geneva watchmaker Louis Cottier devised it and offered his invention to Patek Philippe. Cottier's ingenuity resulted in the company's now classic references 1415 HU and 2523. In 1959, Patek Philippe obtained a patent for Cottier's device (Swiss Patent No. 340 191). The company further developed the movement, introducing calibre 240 HU in 1999.
To the best of our knowledge this watch has never before been offered in public.