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  • Technical
  • Astronomical indications
  • Calendar

Portugieser Perpetual Calendar 42 Boutique Edition

IWC 2020

ref. IW344205
Men's

This is the first time that IWC has built its Perpetual Calendar complication – developed in the 1980s by Kurt Klaus – into an 82000 series in-house calibre. The resulting 82650 movement is fitted inside the smaller 42mm case of this Portugieser Perpetual Calendar. A Pellaton automatic winding system provides 60 hours of power reserve. Each of the calendar indications is adjusted by the crown. Day, date and month are distributed over three subdials, with an aperture in the day display for the leap year indication. The perpetual moon phase display, which diverges by just one day after 577.5 years, sits inside the month display. A boutique edition is proposed in 18k red gold with blue dial, gold-plated hands and a blue alligator strap by Santoni.

Function

  • Function
    Hours, Minutes, Seconds

Complications

  • Astronomical indications
    Moon phases
  • Calendars
    Perpetual calendar

Movement

  • Movement name
    IWC 82650
  • Energy supply
    Self-winding
  • N° of jewels
    46
  • Power reserve
    60 hours
  • Vibrations
    28800
  • Form
    Round
  • Diameter
    mm

Case

  • Form
    Round
  • Material
    18k red gold
  • Height/thickness
    13.80 mm
  • Diameter
    42.40 mm
  • Back
    Sapphire
  • Water-resistance
    30 m

Dial

  • Colour
    Blue

Strap

  • Material
    Alligator
  • Colour
    Blue