The IWC Portugieser Perpetual Calendar 44 Dune IW503704 exemplifies luxury and precision. Featuring an intricate perpetual calendar mechanism and a stunning moon phase display, this watch not only offers exceptional functionality but also enhances any outfit with its elegant design. With improvements over the years, including increased lunar accuracy and the unique Double Moon display for both hemispheres, this timepiece stands as a hallmark of Swiss craftsmanship and sophistication.
From the brand: IWC Watch Portugieser Perpetual Calendar 44 Dune IW503704. Over the last two decades, the Portugieser Perpetual Calendar has established itself as a key pillar of the collection. Originally developed by IWC Schaffhausen’s former Head Watchmaker Kurt Klaus in the 1980s, the perpetual calendar complication has been continuously improved and perfected over the years. The first Portugieser with a perpetual calendar was launched in 2003. The moon phase display was enhanced with a larger reduction gear by taking advantage of the more generous case dimensions, increasing its accuracy from 122 to 577.5 years. Another innovation was the patented Double Moon display, which shows the moon phase as seen from the Northern and Southern hemispheres.
