A fake IW371771 is a replica of the IWC watch that carries that reference number. It copies the outside of the genuine piece while using a different movement, cheaper materials, and no factory warranty or service support. In the United States, importing, selling, or distributing counterfeit goods is a federal offense, even though simply owning one is not.
What the IW371771 reference actually is
IWC builds its watches around numbered references, and each number maps to one exact combination of case, dial, movement, and strap. The reference is stamped on the case back and printed on the documents that ship with the watch. Because the specification for every reference is published by the brand, the fastest way to judge a candidate watch is to compare it against that listing point by point.
Two watches can look alike in a photo and still be different references. A dial color, a bracelet type, or a small movement change is often enough to create a new number. That detail matters, because a seller who cannot name the reference correctly, or who names it one way in the title and another way in the description, is a seller with a problem.
How replica sellers describe fake IW371771 watches
Replica listings lean on a small vocabulary. Knowing what the words mean saves time.
- AAA or AAAAA grade: invented tiers with no standard behind them. The grade is a sales pitch, not a measurement.
- 1:1 or Swiss super clone: a claim of a copy so close it cannot be told apart. Photos in these listings are often edited, and some are pictures of a genuine watch.
- Same factory or same parts: a supply chain claim that does not hold. Genuine IWC movements, dials, and cases are not sold on the open market.
- Swiss made on a replica: in most cases false on its face, and a separate legal problem for the seller.
How to tell a fake IW371771 from a genuine one
Look at the watch the way a watchmaker would, not the way a camera does.
- Dial printing: genuine markings are printed sharp, with consistent stroke weight. Replicas show thick or broken letters, uneven spacing, and fuzzy small text.
- Subdials and date: check that the subdials sit on the correct axis and that the date sits square in its window. An off-center date is one of the most common replica faults.
- Crystal and reflections: genuine anti-reflective coating makes the dial look almost invisible from an angle. Cheap coating looks blue or purple and washes the dial out.
- Crown and pushers: they should thread smoothly and reset with a firm click. Grinding or wobble points to aftermarket parts.
- Case back engraving: reference, case number, and material marks are cut deep and even. Laser etching that looks pale or slightly raised is a warning sign.
- Movement: finishing on a genuine caliber is uniform, with polished bevels and clean engraving. Generic or cloned movements show rough edges, plastic parts, and mismatched rotor text.
Why the reference number is the best first test
Fake watches get sold on looks, and looks are easy to stage. Documents are harder. A genuine IW371771 should arrive with paperwork that matches the case number stamped on the back, plus a service history that IWC or an authorized dealer can trace. If the numbers do not line up, or if the seller refuses to share them before payment, that is the end of the conversation.
Legal and practical risks
US law treats counterfeit goods as a trademark crime. Customs can seize shipments, and brand owners can pursue sellers in civil court. Beyond the legal side, a replica carries real costs: no warranty, no service from the manufacturer, unverified water resistance, and no resale value. Selling one as genuine is fraud, and that risk lands on whoever signs the listing.
If you already own a fake IW371771
- Have it checked by a watchmaker if it was sold to you as genuine. You may need that finding in writing.
- Do not relist it as an original. Describe it as a replica if you sell it at all.
- Expect no service support from IWC, and do not trust any water resistance claim.
- Report the seller to the platform and, for cross-border purchases, to the relevant customs authority.
Buying the real thing
A genuine IW371771 comes from an IWC boutique, an authorized dealer, or a pre-owned seller who can show the papers, the box, and a service record. Ask for the case number, verify it with the brand, and pay with a method that leaves a trace. That process is slower than clicking a replica listing, and it is the only one that ends with a watch that holds value.
Quick answers
Is a fake IW371771 worth buying? It has no resale value, no warranty, and no service path, and buying one supports an illegal trade.
Can a jeweler tell the difference? Yes. Once the case back comes off, movement finishing and part numbering settle the question.
Do replica IW371771 watches use Swiss movements? Most use generic or cloned movements. Swiss made in a replica listing is a marketing claim, not a fact.