Short answer: the code "IW938998" turns up almost only in replica listings, and you will not find it sitting in IWC's own reference list. Treat it as a seller's stock tag, not a factory reference. A number like this says nothing about where the watch came from, what movement is inside, or how well it was built. It says the seller wants a spec sheet to look official.
Why these codes float around
Sellers in this market recycle codes the way clothing sellers recycle style numbers. A code gets pinned to one batch, then the next batch keeps the same code because buyers search for it. That is how a number with no factory behind it becomes a keyword. I have seen a single code applied to cases with different dial layouts, different case sizes, and different movements. If the code does not pin down one object, it cannot verify anything about the object you receive.
What to check before you trust a listing
- Reference against the catalog. Search the number on IWC's site and on dealer archives. If nothing matches, the number is marketing, not identification.
- Caseback engravings. Look hard at font weight, engraving depth, spacing, and where the serial sits relative to the reference. Fakes tend to be shallow and crowded.
- Movement photos. Serious listings show the movement and the rotor finishing. Listings that hide it are hiding something.
- Dial details at macro. Applied indices, print crispness, date wheel font, hand finishing. These are where replica work gets sloppy.
- Weight and dimensions. A steel case with a real automatic movement has heft. Sellers who never state grams usually have a reason.
- Price against reality. When the real watch trades in four figures and the ask is a few hundred, the math has already answered the question.
Listing phrases that end the conversation
- "1:1," "mirror quality," "super clone," "same factory." These are replica trade terms. No authorized dealer uses them.
- Stock photos that appear across several sellers under different names.
- No serial shown, or the same serial reused across listings.
- Pressure to move the payment off-platform, by wire or crypto, where you have no recourse.
The downside is not abstract
Counterfeit shipments get seized at the border, and you carry the loss. There is no warranty, no service, and no parts channel. Water resistance claims are untested and often untrue. Resale value is close to zero, and if you bought believing it was genuine, the loss is the whole purchase price.
Duplicate IW389998: What That Watch Reference Really Means
If you want the real watch, confirm the reference through IWC and buy from a dealer with a return window. If you want a replica, go in knowing that is what it is, price it like a replica, and do not pay genuine money for a stock code.