Up for sale is an IWC Portofino Perpetual Calendar, reference IW344602. This model stands out as the most compact perpetual calendar in IWC’s lineup, offering exceptional mechanical sophistication in an elegant 40 mm case. This watch features IWC’s iconic perpetual calendar movement, developed by master watchmaker Kurt Klaus. It automatically tracks the date, day, month, leap year, and moon phase, requiring no manual adjustment until the year 2100. The moon phase display, made of solid gold, is engineered to remain accurate for over 577 years. At 50M water resistance, this is a very practical watch. I just got this recently because I was mesmerized by the dial and movement. But I hardly wore it and realized that this is not my style. So selling it to make room for other stuff. Technical Specifications • Model: IWC Portofino Perpetual Calendar • Reference: IW344602 • Case: 40 mm diameter, 12.7 mm thickness • Material: 18ct 5N rose gold • Crystal: Sapphire (front and back) • Water Resistance: 50 meters • Dial: Silver-plated with calendar subdials • Strap: Blue calfskin leather with rose gold pin buckle • Movement: IWC Caliber 82650 (in-house automatic) • 60-hour power reserve • 28,800 vph • 46 jewels, 303 components • Functions: • Hours, minutes, seconds • Perpetual calendar (date, day, month, leap year) • Moon phase ASKING: $26,000 OBO (shipped within US). Retails for $36,000.