Portugieser Perpetual Calendar 44 - IW503701

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IWC Schaffhausen’s perpetual calendar was originally developed during the 1980s by former head-watchmaker Kurt Klaus. In 2003, the legendary complication was presented in the Portugieser collection for the first time. Since then, the Portugieser Perpetual Calendar has been a major pillar of the collection.

  • Silver dial
  • Dark brown alligator leather strap by Santoni
  • Strap width 22.0 mm

        

 CASE

  • 18 ct Armor Gold® Case
  • Diameter 44.4 mm
  • Height 14.9 mm
  • See-through sapphire glass back
  • Water resistance 5.0 bar

        

 MOVEMENT

  • 52616 Calibre
  • IWC-manufactured movement
  • Automatic winding
  • 168 Hours power reserve
  • Frequency 28'800 VPH (4 Hz)
  • 385 Components
  • 54 Jewels

        

 FEATURES

  • Small hacking seconds
  • Pellaton automatic winding
  • Power reserve display
  • Perpetual calendar with displays for the date, day, month, year in four digits and perpetual moon phase
  • 7 days power reserve
  • Rotor in 18-carat 5N gold
  • Double box-glass sapphire crystals, antireflective coating on both sides