IWIW503406-Portugieser Perpetual Calendar

IW503406

Portugieser Perpetual Calendar Add to my wishlist

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  • Platinum case
  • Automatic, self-winding
  • Black alligator leather strap by Santoni
  • Diameter 44.2 mm

This watch is available in different materials and colours

See variations

IW503406 Specifications

case

case

  • Platinum case
  • Diameter 44.2 mm
  • Height 14.9 mm
  • See-through sapphire glass back
  • Water resistance 3 bar

Movement

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

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
  • Rotor in 18-carat red gold
  • Small hacking seconds
  • Limited to 250 pieces

dial

dial

  • Silver-plated dial

Strap

Strap

  • Black alligator leather strap by Santoni
  • Strap width 22 MM

The Portugieser Perpetual Calendar Story

Developed by Kurt Klaus in the 1980s and composed of about 80 individual parts, IWC’s perpetual calendar is still the measure of all things when it comes to simplicity and technical elegance. All its displays are perfectly synchronized, and can be advanced simply by turning the crown. This version is equipped with a double moon phase display, showing a mirror image of the moon as seen by observers in the northern and southern hemispheres. Perfectly matching the colour of the two moons are the silver-plated dial, and the case made of shimmering platinum. This rare and extremely durable precious metal is sure to be just as beautiful in 577.5 years: the time from now that will require the moon phase display to be adjusted. Until then, the IWC-manufactured 52615 calibre movement ensures a precise rate. Fitted with components made of ceramic, the Pellaton automatic winding system builds up a power reserve of 7 days with the help of an 18-carat gold rotor.

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.

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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