The short answer to the fake IW9380601 question is that no photo, listing, or seller story settles it. Three things do: a reference number and serial that match each other and IWC's own records, a movement whose finish and caliber stamping hold up under a loupe, and paperwork that survives a direct check with the manufacturer. Anything else, including box, papers, and a convincing dial, is supporting evidence rather than proof. The guidance below applies whether you are looking at a watch you already own or one you are about to buy from a private seller.
Why this reference number attracts questions
IWC reference numbers in the IW3xxxxx, IW4xxxxx, and IW5xxxxx ranges show up constantly in replica catalogs, because those are the Portugieser, Portofino, and Pilot models that sell in volume. A reference like IW9380601 sits further out on the edge of the catalog, which cuts both ways. Fewer counterfeits exist for less popular references, so the odds of a random fake are lower. At the same time, most buyers have never handled the genuine article, so they have no mental baseline for case finishing, dial printing, or crown feel. The question is usually not "is this a known fake model" but "can I verify this specific watch," and that is a different problem.
Criterion 1: Reference and serial engraving
Start with the caseback. The reference number should be engraved, not printed, and it should sit in a consistent position on the caseback ring or between the lugs. The serial is a separate number, and on a genuine watch the two live in the manufacturer's records as a matched pair. Replica factories are good at copying a reference number and weak at inventing a serial that survives a records check. If a seller refuses to give you both numbers before payment, treat that as the answer.
- Engraving depth and font weight should be uniform across every character.
- Serial and reference must both appear, and they must belong together.
- Lasered or pad-printed numbers on a caseback that should be engraved are a hard fail.
Criterion 2: Movement finish and caliber stamping
This is where most replica IWC watches fall apart, and it is why an in-hand inspection beats any photo. Genuine movements show consistent beveling on bridges, a correct rotor engraving, and jewels seated flush. Clones often use a decorated base caliber with plating that flakes at the edges, screws that sit proud of their countersinks, and rotor text that is too shallow or too deep. Ask the seller for a clear macro shot of the movement with the caseback off, and be suspicious if the caseback uses a screw-down construction that nobody has opened.
Fake IW9380601 Compared To a Real IWC: Which to Pick First
Criterion 3: Dial, hands, and case finishing
- Applied indices should sit flat and catch light evenly; crooked or lifted markers are a common replica flaw.
- Printing under a loupe should have crisp edges with no ink bleed, especially on small text.
- Hands should be clean at the base and tip, with no burrs or uneven lume application.
- Case brushing should run in one direction and reverse at defined lines, not wander.
- Crown action should feel positive with no grinding or wobble.
Photo review versus in-hand inspection
Photo review
- Pros: fast, free, and lets you screen several watches before traveling.
- Pros: good for catching obvious dial and engraving errors.
- Cons: cannot show movement finish, weight, or crown feel.
- Cons: lighting and compression hide the flaws that matter most.
In-hand inspection by a watchmaker
- Pros: confirms the movement, the case construction, and the numbers together.
- Pros: produces a documented opinion you can use to walk away or negotiate.
- Cons: costs a bench fee and takes time.
- Cons: requires a watchmaker willing to open a watch you do not own yet.
Recommendation: use photo review only to decide whether a watch is worth a second look. For any transaction where real money changes hands, budget for a watchmaker's inspection before payment, or buy from a seller who accepts a return window long enough to get one. If the seller resists either option, that is your answer.
What actually resolves the question
Send the reference and serial to the manufacturer's service network and ask them to confirm the pairing and the configuration. Genuine records will state the model, the case material, and the dial variant. A watch that comes back as a different configuration, or that comes back with no record at all, is either a counterfeit or a watch with a replaced caseback, and both are reasons to stop. Do not rely on third-party authentication cards, dealer stickers, or a seller's claims about a "Swiss super clone" being indistinguishable, because the entire replica market is built on that sentence.
Bottom line
Buyers who end up with a fake IW9380601 almost always skipped the records check and relied on photographs. Do the reverse: verify the numbers first, then inspect the movement, then judge the cosmetics. If you cannot complete those three steps, treat the watch as unverified and price your offer accordingly, or walk away.