IWC Portugieser Perpetual Calendar IW503703 Watch

IWC Schaffhausen’s story began in 1868 with Florentine Ariosto Jones, an American visionary who combined U.S. manufacturing precision with Swiss craftsmanship. Initially met with scepticism, his bold vision succeeded, laying the foundation for a brand defined by precision, resilience, and functionality. From the cockpit to the cosmos, IWC timepieces reflect a design philosophy focused on durability, reliability, and wearability. IWC’s perpetual calendar was developed in the 1980s by former head watchmaker Kurt Klaus and was first introduced in the Portugieser collection in 2003. Since then, the Portugieser Perpetual Calendar has become a cornerstone of the line. The Portugieser Perpetual Calendar features a 44.4?mm 18-carat white gold case paired with a striking horizon blue dial. It offers a seven-day power reserve and a perpetual calendar with displays for the date, day, month, four-digit year, and moon phase. The movement is wound by an 18-carat 5N gold rotor, and the watch is water-resistant to 50?metres. IWC provides a two-year international warranty, extendable by six years via online registration.