Patek Philippe 5100J 10 Day Power Reserve 18K Yellow Gold Cream Dial

Introduced in 2000 for the new millennium, the Patek Philippe Reference 5100J-001 is one of the brand's most recognizable shaped watches of the modern era. The reference was issued as a limited-production Millennium series, and in yellow gold it takes on its most classical form: an 18K case with a restrained silver-toned dial. Its elongated, Art Deco-influenced Gondolo case gives the watch a crisp, architectural presence. The sector-style power reserve display is the detail most closely associated with the model. Power comes from the manually wound caliber 28-20/220, a rectangular movement built to deliver 10 days of reserve. It also features a Gyromax balance and a reserve indication with a warning sector, practical complications executed to the standard collectors expect from Patek Philippe. At launch, the 5100 stood apart from the round dress watches that dominated the period. Its appeal came from that contrast: a formal shaped case paired with an unusually long-reserve movement. For many collectors, that is still the point. The 5100J-001 offers strong period character, a distinctive case design, and one of Patek Philippe's notable long-reserve calibers in a limited-production reference. Like New with Patek Philippe box.