Portugieser Automatic Chronograph 41mm 18-Karat Gold and Alligator Watch, Ref. No. IW371610

A One size is equivalent to a One SizeOne Size
Editor's Notes

IWC SCHAFFHAUSEN's 'Portugieser Chronograph' hasn't changed much since it debuted back in 1939, but this model is one of the first to have an in-house manufactured calibre 69355 automatic movement. Crafted in Switzerland, it features a polished 18-karat gold case with a slate dial that complements the sleek black alligator strap. It has a small seconds sub-dial, 30-minute counter and 60-second hand, plus a 46-hour power reserve.

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

Details & Care


  • IWC-manufactured calibre 69355 automatic movement with 46-hour power reserve
  • 27 jewels, 28,800 Vph


  • Hour and minute hands
  • Small seconds sub-dial
  • Chronograph: 30-minute counter, 60-second hand


  • Slate dial
  • Gold-tone hands, Arabic numerals and indices


  • 18-karat gold case
  • Crown for time adjustments and manual winding
  • Sapphire glass crystal
  • Exhibition case back
  • Butterfly folding clasp-fastening black alligator strap


  • Case diameter: 41mm; case thickness: 13mm; strap width: 20mm
  • 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: IW371610
  • Made in Switzerland
Product Code 33599693056301171

Returns or Exchanges

Try your purchase in the comfort of your own home and, if it’s not quite right, let us know and we’ll arrange a free collection from your home or office.