Portugieser Perpetual Calendar Digital | IW397204

  • Collection: Portugieser Perpetual Calendar
  • Model reference: IW397204
  • Case/Size: Rose gold, 45mm
  • Dial: Blue
  • Movement: Automatic-winding
  • Functions: Perpetual calendar
  • Specificity: Limited to 250 pieces
  • Condition: Very good
  • Price: Upon Request
Manufacturer’s International Warranty

All the watches we offer come with a 2 year warranty but this timepiece enjoys a guarantee covered by the manufacturer, valid internationally at any flagship store or official retailer carrying the respective brand. If you wish we are happy to assist you handling this task. Scope of coverage subject to manufacturer’s policy, please contact us for more information.



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IWC’s foray into the perpetual calendar chronograph territory started in 1985, with the launch of the Da Vinci – Perpetual Calendar Ref. 3750. A project spearheaded by the industry veteran, and the then design engineer at IWC, Mr. Kurt Klaus. The result of almost five years of development work was the IWC 79060 calibre. Over the years, IWC has remastered and perfected the caliber to make this complication a more practical, user friendly and adaptable into various aesthetic representations.

Since then, we have seen an entire range of IWC perpetual calendar chronographs across almost all models including the Da Vinci Kurt Klaus edition in a tonneau case, the Big Pilot, the Ingenieur with the digital date / month, and the Portugieser.


The present reference IW397204 Portugieser Perpetual Calendar Digital Date-Month was introduced in 2016.
It features an 18K rosegold case measuring 45mm in diameter, but with short tapered lugs so it doesn’t feel too chunky on the wrist.

The sheer size of the case gives the dial enough real estate to display all the functions of this grand complication in a neat and legible format.

The counter at 12 o’clock displays the chronograph hours and minutes, which the sub-seconds counter at 6 o’clock indicates the Leap Year. The date and month are displayed in a digital format via two distinct apertures. The blue dial with rose gold hands and numerals gives this beauty the much deserved luxurious appeal.

Seen through the sapphire caseback is the manufacture Calibre 89801. A self-winding movement offering a 68-hr power reserve.
IWC has left no stone unturned with this masterpiece. The finishing on the movement is details, featuring Côtes de Genève, perlage on the baseplate and polished screws and edges.

Offered on a hand-stitched black alligator leather strap made by Santoni.


IWC – Bio

IWC Schaffhausen is a luxury Swiss watch manufacturer located in Schaffhausen, Switzerland. Founded by American watchmaker Florentine Ariosto Jones in 1868, IWC has been a subsidiary of the Swiss Richemont Group since 2000.
IWC is best known for producing high-quality pilot/aviation watches and using titanium in watchmaking. Since early 2000s, IWC has been recognized as a forerunner in the watchmaking industry committed to environmental protection and sustainable development.