Presented here is a rare and highly appealing example of the Patek Philippe Aquanaut reference 5165, the so-called “Jumbo” Aquanaut, distinguished by its elegant 38mm case. Produced in 2009, this short-lived reference is particularly sought after for its balanced proportions, bridging the gap between the original Aquanaut and later, larger iterations. The watch has been professionally polished by our watchmaker and today presents in very clean overall condition. The movement has been checked and is in proper working order. Accompanied by its original papers, booklets, and leather document holder, this example is offered without the original box. A refined and wearable expression of the Aquanaut line, this reference 5165 offers understated sport elegance and increasing collectability, making it an attractive opportunity for collectors seeking a rare and well-presented Patek Philippe sports watch.