IWC Perpetual Calendar Portuguese (Ref. IW503307)

The IWC Portugieser Perpetual Calendar Ref. IW503307 is a sophisticated high-complication timepiece that combines the timeless proportions of the Portugieser collection with one of IWC’s most celebrated mechanical complications. Its elegant silver-plated dial features applied Arabic numerals, feuille-style hands, and a beautifully balanced arrangement displaying the date, day, month, moon phase, small seconds, and power reserve.

At its heart is the IWC-manufactured Caliber 52610 automatic movement, featuring the efficient Pellaton winding system and an impressive 168-hour, or 7-day, power reserve. The perpetual calendar is mechanically programmed to recognize different month lengths and leap years, making it one of the most technically accomplished watches in the Portugieser family.

The substantial 44.2mm stainless steel case combines polished and brushed finishing and is paired with a refined crocodile leather strap. A sapphire crystal protects the dial, while the exhibition caseback offers a view of the finely finished manufacture movement.

This 2019 example is in very good condition, showing only light signs of careful wear, and comes as a complete full set with its original box, papers, and accessories. A highly collectible IWC that delivers classic design, impressive mechanical complexity, and exceptional wrist presence.

Key Features

• Reference: IW503307

• Case Size: 44.2 mm

• Case Material: Stainless steel

• Bezel: Fixed, polished stainless steel

• Dial: Silver-plated dial with perpetual calendar displays

• Movement: IWC Manufacture Caliber 52610 automatic

• Functions: Hours, minutes, small seconds, date, day, month, moon phase, perpetual calendar, power reserve

• Crystal: Sapphire crystal

• Water Resistance: 30 m / 100 ft

• Power Reserve: 168 hours / 7 days

• Strap: Crocodile leather strap

• Clasp: Folding clasp

• Caseback: Sapphire exhibition caseback

• Year: 2019

• Condition: Very good – light wear

• Limited Edition: 250 pieces

Included in Sale

• Original inner and outer boxes

• Warranty papers

• Instruction manuals

• Additional accessories as pictured

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