IWC IW502218 Portuguese Perpetual Calendar 18K White Gold Gray Dial

The IWC Portuguese Perpetual Calendar IW502218 embodies the brand’s mastery of haute horlogerie, housed in an 18K white gold case measuring approximately 42.3 mm in diameter and 15.6 mm in thickness. First introduced in the mid‑2000s, this model features IWC’s in‑house Caliber 51613 (or 51610 in some iterations), offering a full perpetual calendar with moon‑phase, four‑digit year display, day, date, month, small seconds, and a seven‑day power reserve via the patented Pellaton winding system. The sunburst gray (“Ardoise”) dial is adorned with applied white gold Arabic numerals and feuille hands, delivering both elegance and exceptional legibility. The exhibition caseback reveals the beautifully finished movement with its gold‑medallion rotor, a hallmark of IWC’s attention to detail. With only a limited production run, this reference is highly sought after by collectors for its technical sophistication, timeless design, and the rarity of a perpetual calendar in white gold within the Portuguese line. The combination of a massive 168‑hour power reserve, perpetual calendar precision, and luxurious materials makes this piece a standout in any serious collection. Like New with IWC box, service papers dated 2018, and papers dated 2008.