IW503401

Portugieser Perpetual Calendar

Whether it's London or Johannesburg: the perpetual calendar's double moon display provides a mirror-like view of the moon phase to ensure its correct depiction in both hemispheres.

IW503401

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IWC Schaffhausen Boutique – Schaffhausen

Baumgartenstrasse 15 8200, Schaffhausen +41526305030
Opening Hours
Monday: 9:00 AM - 5:30 PM
Tuesday: 9:00 AM - 5:30 PM
Wednesday: 9:00 AM - 5:30 PM
Thursday: 9:00 AM - 5:30 PM
Friday: 9:00 AM - 5:30 PM
Saturday: 9:00 AM - 3:30 PM
  • Automatic, self-winding
  • Black alligator leather strap by Santoni
  • Diameter 44.2 MM

This watch is available in different materials and colours

See variations

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. In the model with the double moon display, the moon phase and its mirror image show the state of the moon in both the northern and southern hemispheres. The double moon model comes with the railway-track-style chapter ring typical of the Portugieser, while the designers have transformed the entire moon phase display into a star-studded night sky, so that the moon and stars appear to hover in infinite space. The elegant timepiece leaves virtually no wish unfulfilled: perpetual calendar, window showing the year in four digits, 7-day automatic movement with Pellaton winding and a power reserve display. 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 a blue dial and arched-edge front glass and comes with a black alligator leather strap.

Specifications

case

  • 18 ct white gold case
  • Diameter 44.2 MM
  • Height 14.9 MM
  • See-through sapphire glass back
  • Water resistance 3 bar

Movement

  • 52615 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 for the northern and southern hemisphere
  • 7 days power reserve
  • Power reserve display
  • Sapphire glass, arched-edge, antireflective coating on both sides
  • Pellaton automatic winding
  • Small hacking seconds

dial

  • Midnight Blue 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.

Double moon phase

Double moon phase

The moon phase and its mirror image show the state of the moon in both the northern and southern hemispheres. This gives owners north and south of the equator a view of the moon phase that corresponds to the way they see it.

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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