Portugieser Perpetual Calendar Automatic 44.2mm 18-Karat White Gold and Alligator Watch, Ref. No. IW503401 MSNET60

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Editor's Notes

IWC SCHAFFHAUSEN's popular 'Portugeiser' model has nine notable functions, including Kurt Klaus' perpetual calendar mechanism that's built to track the days, month and date, as well as a moon indicator that shows both the northern and southern hemispheres. Coupled with the Pellaton 52615 calibre movement's impressive week-long power reserve, and you've got a fuss-free watch with minimal need for winding. The 18-karat white gold case houses a deep midnight-blue dial and clear exhibition back that showcases the inner workings. It has a handsome black and brown alligator strap from Santoni that brings each element together.

We offer an eight-year warranty for all working parts and manufacturing faults for IWC SCHAFFHAUSEN watches. For more information, contact one of our experts by emailing

Technical Specification


  • IWC-manufactured calibre 52615 Pellaton automatic movement with 168-hour power reserve
  • 54 jewels, 28,800 Vph


  • Hour, minute and second hands
  • Chronograph: perpetual calendar with displays for date, day, month, year and perpetual moon phase, small hacking seconds counter


  • Midnight-blue dial


  • 18-karat white gold case
  • Crown for date and time adjustments and manual winding
  • Sapphire glass crystal
  • Exhibition case back
  • Buckle-fastening black and brown alligator strap


  • Case diameter: 44.2mm; case thickness: 15.3mm
  • Water resistance: 3 bar
  • Comes in a presentation box
  • This piece has been certified in accordance with the Hallmarking Act 1973
  • Alligator: USA
  • Reference number: 17035
  • Made in Switzerland
Product Code 16301891330333042

Returns or Exchanges

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