Fake Portugieser Automatic 40: The Short Answer

Most fake IWC Portugieser Automatic 40 watches fail on four points: case diameter, the absent date window, the small-seconds subdial at 6 o'clock, and the movement behind the sapphire caseback. The genuine reference family is IW3583. It measures 40.4 mm across and about 12.3 mm thick, runs the in-house calibre 82200 with a 60-hour power reserve, and has no date. Any watch sold as a Portugieser Automatic 40 with a date at 3 o'clock is either a different reference or a counterfeit.

Prerequisites

  • Digital calipers or a steel ruler
  • A 10x loupe or a phone macro lens
  • The seller's reference number and serial number in writing
  • The official specifications for the reference you are comparing

Authentication Procedure

  1. Measure the case across the bezel from 3 to 9 o'clock. Genuine: 40.4 mm. Many fakes measure 41 to 42 mm because they reuse a generic case.
  2. Measure thickness at the center of the caseback. Genuine: about 12.3 mm including the crystal. Counterfeits often exceed 13.5 mm.
  3. Confirm there is no date aperture. The Automatic 40 has a clean dial with running small seconds only.
  4. Check the subdial. It sits at 6 o'clock, centered on the vertical axis, with a recessed track and a short seconds hand.
  5. Inspect the dial printing under magnification. "IWC SCHAFFHAUSEN" and "AUTOMATIC" should be thin, sharp and level. Fake printing bleeds at the edges or sits off the horizontal.
  6. Study the hands. Genuine leaf-shaped hands carry a polished bevel and a flat brushed top surface, and they hold no luminous material at all.
  7. Turn the watch over. The sapphire back should reveal the calibre 82200 with real Geneva stripes on the bridges, circular graining and blued screws. Counterfeits show shallow laser etching over printed decoration.
  8. Read the caseback engraving. Reference and serial numbers need crisp edges, and the water resistance mark must match the reference on the certificate.
  9. Verify the serial number with IWC customer service or an authorized dealer before money changes hands. Genuine watches can be registered to an owner account.
  10. Check the price against the used market. A "new in box" offer far below the secondary market for a steel example is a warning sign, not a bargain.

Where Counterfeits Cut Corners

  • Movement finishing: printed stripes instead of striped bridges, and engraving that looks blurred under a loupe.
  • Crown action: gritty winding, a crown that sits proud of the case, and a stiff hand-setting feel.
  • Strap and buckle: stiff embossed leather and a thin buckle with the wrong shape.
  • Weight: the head feels light because the case walls are thick and the movement is a basic automatic.
  • Papers: a warranty card whose serial does not match the caseback.

Legal and Practical Notes

Counterfeit watches infringe registered trademarks, and customs authorities can seize them at the border. A fake carries no warranty, no service support and no resale value, and a service center will decline to work on it. If you already own a watch you suspect is counterfeit, take it to an authorized service center for a written assessment rather than relying on photos or forum opinions. Buy from a seller who will put the reference number, serial number and return terms in writing before payment.