I.W.C IWC Portuguese Perpetual Calendar

The Portuguese Perpetual Calendar is one of the most sophisticated complications in the IWC collection. It combines classic aesthetics with technical sophistication – and displays the date, day of the week, month, year, and moon phase automatically and correctly, without manual adjustment until the year 2100.

A timepiece for connoisseurs who appreciate lasting value, mechanical precision, and harmonious design.

Currently available I.W.C IWC Portuguese Perpetual Calendar watches

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Technology for generations

The perpetual calendar is one of the most fascinating complications in watchmaking. In IWC's Portuguese interpretation, this technology is implemented in a particularly harmonious and balanced manner. The display of the date, day of the week, month, year, and moon phase is automatic and will remain accurate—without intervention—until 2100.

The watch impresses not only with its mechanical intelligence, but also with a design that keeps every function in perfect balance. The relaxed dial architecture remains clear despite its complexity – entirely in keeping with the Portugieser DNA.

Variants & Calibers in Detail

The IWC Portuguese Perpetual Calendar is available in various versions – either in stainless steel or rose gold. The case measures 42.4 mm and its rounded shape makes it comfortable to wear. Inside is the IWC-manufactured caliber 82650 or—in the top models—the 52615 with a bidirectional Pellaton winding system and a power reserve of up to 7 days.

The moon phase display is calibrated for the northern and southern hemispheres and impresses not only visually but also with its exceptional precision. The overall look is complemented by a high-quality alligator leather strap and a sapphire crystal case back that provides a view of the finely decorated movement.

Precision with attitude

The Portuguese Perpetual Calendar is more than a technical masterpiece – it is an expression of understanding of time, consistency and design clarity.

For all those who don't just look at the clock, but see time in a larger context – mechanically, aesthetically and across generations.