A luxury high-complication mechanical timepiece from IWC Schaffhausen, the Portugieser Perpetual Calendar in 18k rose gold features a sophisticated gray sunburst dial with applied Arabic numerals and polished rose-gold hands. The watch integrates three subdials: day-of-week (with Sunday highlighted), date with leap-year indicator, and month/moon phase display—showing moon age and lunar phase with a realistic moon disc. The case measures ~42.3mm, with a sapphire crystal front and exhibition caseback revealing the in-house Calibre 52610 automatic movement (7-day power reserve). Paired with a hand-stitched brown alligator leather strap and deployant clasp, it exemplifies Swiss horological craftsmanship. Ideal for formal events, business settings, or collectors’ occasions, this watch balances elegance with technical mastery—requiring no date adjustment until the year 2100. Its refined aesthetics suit discerning men who value heritage, precision, and understated luxury.