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Portugieser Perpetual Calendar 42

Automatic winding, Diameter 42.4 mm

Green, Stainless steel Case

PRODUCT INFORMATION

  • Green dial
  • Green alligator leather strap Strap width 22.0 mm

DELIVERY & RETURNS INFORMATION

Limited Availability – contact us to learn about purchase options

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Portugieser Perpetual Calendar 42

This version of the Portugieser Perpetual Calendar 42 presents the popular complication on a green dial.

Perpetual calendar | IWC Schaffhausen

In the early 1980s, IWC’s head-watchmaker Kurt Klaus set out on an engineering journey to translate the Gregorian calendar with its many irregularities into a mechanical program for a wristwatch. His ingenious perpetual calendar, which debuted in the Da Vinci Perpetual Calendar in 1985, comprises only about 80 parts and displays the date, day, month, year in four digits, and the moon phase. The smart mechanical program automatically recognises the different length of the months, and even adds a leap day at the end of February every four years. The moon phase display is so precise that it will deviate from the actual phase of the moon by just one day after 577.5 years. All displays are perfectly synchronised and can be adjusted simply by turning the crown. Some models come with an additional century slide, so the watch can continue showing the date until 2499. The calendar only needs a small adjustment in those centurial years that skip the leap year, which is the case in 2100, 2200, and 2300. Some versions of the calendar feature a double moon phase display, showing the moon phase on the northern and southern hemispheres.

'Case'
  • Features
  • Case
  • Movement
  • Packaging
  • Central hacking seconds
  • Pellaton automatic winding
  • Sapphire glass, convex, antireflective coating on both sides
  • Perpetual calendar with displays for the date, day, month, leap year and perpetual moon phase
  • Case Stainless steel Case
  • Diameter 42.4 mm
  • Height 13.8 mm
  • Back case See-through sapphire glass back
  • Water resistance 3.0 bar
  • Calibre 82650 Calibre
  • Movement type Automatic winding, IWC-manufactured movement
  • Power Reserve Indicator 60 hours
  • Frequency 28'800 VPH (4 Hz)
  • Components 303
  • Jewels 46
  • Finishing Côtes de Genève

Contact Concierge

Do you have a question about a product, your order or our service? Contact us via phone, email, or through our Whatsapp service.