PATEK PHILIPPE | REFERENCE 5131 A YELLOW GOLD WORLD TIME WRISTWATCH WITH CLOISONNÉ ENAMEL DIAL, MADE IN 2009 " | 百達翡麗 | World Time 型號5131 黃金世界時間腕錶，備掐絲琺瑯錶盤，機芯編號3925013，錶殼編號4483459，約2008年製"

Reference 5131 is a sublime coalescence of two of Patek Philippe’s favourite models. The case and movement of the reliable world-time reference 5130 and the cloisonné enamel dial reminiscent of the vintage world-time reference 2523 are both present to grace the then newly launched reference 5131 in 2008. Reference 5131 caused an immediate sensation among collectors and connoisseurs, and the lasting interest in the model is shown by the extensive customer waiting list for it. Originally only available in yellow gold with a map of the Americas, the model was later introduced in white gold, pink gold and platinum. Reference 5131 is rare on the market as very few are produced every year due to the difficulty and amount of time required to create hand-made enamel dials; and because of that very nature, each dial could be considered unique.