Short answer
"Ingenieur 37" is a search phrase, not a model name from IWC Schaffhausen. Sellers use it for counterfeit Ingenieur watches listed as 37 mm. IWC's current Ingenieur Automatic 40 has a 40 mm case. Older Ingenieur Automatic generations did include a 37 mm size, so the number in a listing can point to an old real size or to a measurement a seller invented. No public record confirms a "37" model code, so treat the number as a seller label until the reference number checks out.
Case and size checks
Measure the case with calipers at the bezel edge. A real Ingenieur Automatic 40 reads 40.0 mm. Counterfeit cases run narrow or wide by half a millimeter or more. Compare crown guards and lugs against photos published by IWC. Soft lug edges and crooked crown guards point to a fake case.
Caseback and markings
- Reference and serial numbers are cut into the metal. On fakes they sit on the surface as shallow etch.
- Fonts match IWC's typeface. "SWISS MADE" sits at the bottom edge with even spacing.
- Blurry etch, uneven depth, or a sticker in place of engraving indicate a counterfeit.
Movement
IWC lists calibre 32111 with a 120-hour power reserve for the Ingenieur Automatic 40. A sapphire caseback shows the movement. Counterfeits use Asian automatic movements with printed rotor text. Real engraving has depth. A 120-hour reserve is hard to copy: wind the watch, set it down, and check the rate after three days.
Price and paperwork
Steel Ingenieur Automatic 40 models list near USD 12,000. Listings at USD 200 to USD 700 are counterfeits. Boxes, hang tags, and cards come from print shops, so paperwork alone proves little. Ask for the reference number and a caseback photo with the serial visible. If a seller cannot supply both, stop.
Verification steps
- Compare the stated reference number against IWC's published specifications.
- Take the watch to an IWC boutique or an independent watchmaker for a movement check.
- Request service records. IWC keeps files on watches it has serviced.
Legal status in the US
Importing a counterfeit watch into the United States violates trademark law. US Customs and Border Protection can seize shipments. Buyers get no warranty support from IWC and no spare parts.