IWC Portuguese Perpetual Calendar

Ref. IW5022. Features Perpetual calendar, perpetual moon phase, four-digit year display, mechanical movement, automatic Pellaton winding system, power reserve display, small seconds with stop function, Breguet balance spring, rotor with 18 ct. yellow gold medallion. Movement: Caliber 51610. Vibrations 21,600 / h / 3 Hz. Jewels 64. Power reserve 7 days (168 hours). Winding automatic. Case: Material 18 ct. rose gold, 18 ct. white gold. Glass sapphire,
convex, antireflective coating. Water-resistant 3 bar (30 m). Diameter 42.3 mm. Height 15.6 mm.

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