Short answer

A fake Portugieser Small Seconds is a replica of the IWC Portugieser Automatic 40, reference family IW3583. The genuine watch uses a 40.4 mm steel case, an in-house calibre 82200 with a 60-hour power reserve, and a small seconds subdial at 6 o'clock. Replicas copy the dial layout, the case shape, and the strap options. They do not copy the movement, the winding system, or the caseback finish. Prices show the gap: genuine steel references sell for about $7,000 to $8,500, and replica listings run $300 to $700.

IWC built the first Portugieser in 1939 for two Portuguese merchants. The name refers to that order, not to a factory or a country of origin.

Genuine specs

  • Case: 40.4 mm diameter, about 12 mm thick, stainless steel or 5N gold.
  • Crystal: domed sapphire front and back, coating on both faces.
  • Dial: applied Arabic numerals at 12 and 6, baton markers at the other hours, printed rail-track minute ring, small seconds at 6.
  • Movement: calibre 82200, automatic, Pellaton winding, 60-hour power reserve, 4 Hz or 28,800 vph.
  • Hands: leaf shape, small seconds hand set low on the subdial.
  • Water resistance is low by dive-watch standards. Treat the watch as splash contact only.

Where replicas differ

  • Movement. A subdial at 6 needs a real small-seconds movement. Common bases are the Seagull ST17, the Miyota 9015 with a module, and decorated ETA 2824 copies. Beat rates land at 21,600 or 28,800 vph.
  • Winding. The Pellaton rotor winds in both directions. Many replica rotors wind one way and spin free the other way.
  • Thickness. Replica cases measure 12.5 mm to 13.5 mm. The subdial module adds height above the dial.
  • Subdial depth. On the real dial the seconds hand sits close to the surface. Module builds raise the hand and shift the subdial center.
  • Dial print. Rail-track line weight, numeral font, and letter spacing in SCHAFFHAUSEN run wide on replicas.
  • Caseback. The 82200 shows perlage, a skeletonized rotor, and deep engraving. Replica backs use laser etching with shallow lines.

Checks in hand

  1. Wind the crown and shake the watch. A Pellaton rotor picks up charge from wrist motion in both directions.
  2. Time the beat on a timegrapher. The 82200 reads 28,800 vph. Seagull ST17 bases read 21,600.
  3. Measure the case with dial calipers. 40.4 mm wide and 12 mm thick rules out most replicas.
  4. Inspect the crown and lugs. Lugs taper, and the crown carries the IWC mark.
  5. Check papers. Reference number, case number, and service records trace back to IWC.

Terms sellers use

"1:1", "super clone", "Swiss movement", and "NWBIG" are marketing labels, not grades. No trade body defines or checks them. A movement sold as Swiss may hold Swiss parts on a Chinese base, or no Swiss parts at all.

Legal status in the US

Trafficking in counterfeit goods is a federal crime under 18 U.S.C. § 2320. A first offense carries up to 10 years, and a repeat up to 20 years. U.S. Customs and Border Protection seizes counterfeit watches at ports of entry. Trademark owners can file civil suits against sellers under the Lanham Act. Import for personal use is not an exception. The OECD put the global trade in counterfeit and pirated goods at about $464 billion in 2019, near 2.5 percent of world trade.