Patek Philippe 5712/1a or 5980/1a

Patek Philippe Nautilus Chronograph 5980A The reference 5980A represents Patek Philippe's chronograph offering within the Nautilus collection. This reference features a black dial in a 40.5mm steel case, produced from 2006 to 2021. The model combines the Nautilus case architecture with chronograph functionality through Patek Philippe's in-house movement. The 40.5mm steel case houses the automatic caliber CH 28-520 C, delivering 45 hours of power reserve. Construction includes a sapphire crystal and fixed bezel, with water resistance rated to 120 meters. The watch is fitted with a matching stainless steel bracelet. This reference appeals to collectors seeking a sports chronograph from Patek Philippe's contemporary catalog. The steel construction and chronograph complication position the 5980A as a tool watch within the manufacture's lineup, offering practical functionality alongside the brand's movement craftsmanship. The 15-year production span indicates sustained demand for this particular configuration.