IW503301

Portugieser Perpetual Calendar

A moon you can rely on, even under cloudy skies: the perpetual calendar's high-precision moon phase display needs a one-day adjustment every 577.5 years.

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IW503301

Portugieser Perpetual Calendar Add to Wishlist

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  • Automatic, self-winding
  • Black alligator leather strap by Santoni
  • Diameter 44.2 MM

You may return your purchase via FedEx to the Customer Contact Center within thirty (30) days of receipt for exchange or a refund to the original credit card.

IWC will accept products returned to us within thirty (30) days of the date of the delivery, in its original packaging in a new and unused state, with all materials and documents included and in accordance with the Conditions of Sale.

Personalized IWC products (engraved or otherwise) cannot be returned to IWC for exchange or refund. All returns will be subject to strict Quality Control (QC) by IWC to ensure that the returned products satisfy these requirements. If the products do not meet QC standards, IWC will refuse the return, and the products will be sent back to the Customer or the Gift Recipient, as applicable. If the returned product satisfies Quality Control (QC), IWC will proceed with the applicable refund or exchange.

 

This watch is available in different materials and colours

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THE STORY

The moon phase display on the Portugieser Perpetual Calendar diverges by just 1 day in 577.5 years from the actual phase of the moon. The elegant timepiece leaves virtually no wish unfulfilled. It is equipped with features such as a perpetual calendar, a window showing the year in four digits and a 7-day automatic movement with Pellaton winding. The four subdials on the slate-coloured dial display the phase of the moon, the date, month and day, the power reserve and the small seconds. This timepiece is powered by an IWC-manufactured movement from the 52000-calibre family, featuring a solid red gold rotor and blued screws. The 18-carat white gold watch has an arched-edge front glass and comes with a black alligator leather strap.

Specifications

case

  • Diameter 44.2 MM
  • Height 14.9 MM
  • See-through sapphire glass back
  • Water resistance 3 bar

Movement

  • 52610 Calibre
  • Automatic, self-winding
  • Frequency 28800.0 vph (4.0 hz)
  • 54 Jewels
  • 168 hours Power Reserve
  • IWC-manufactured movement
  • Côtes de Genève, perlage

Features

  • Perpetual calendar with displays for the date, day, month, year in four digits and perpetual moon phase
  • 7 days power reserve
  • Power reserve display
  • Sapphire glass, arched-edge, antireflective coating on both sides
  • Pellaton automatic winding
  • Small hacking seconds

dial

  • Slate-coloured dial

Strap

  • Black alligator leather strap by Santoni
Calibre Family 52000

Calibre Family 52000

The twin barrels are the trademark feature of the 52000-calibre family. They supply the watches with sufficient energy for a 7-day power reserve and drive energy-sapping complications like the annual calendar and perpetual calendar.

Moon phase display

Moon phase display

IWC’s moon phase displays are not just aesthetic works of art – they are extremely precise and diverge from the actual phase of the moon by just 1 day in 577.5 years.

Perpetual calendar

Perpetual calendar

The perpetual calendar is one of the most fascinating haute horlogerie complications. Originally developed by former chief designer Kurt Klaus and continuously improved since then, it is mechanically programmed for 577 years.

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