Top pick: If you are searching for a fake IW938470, the safest buy is a mid-tier first copy from a seller who photographs the exact unit, names the movement inside it, and offers a return window. That pick wins on four criteria: whether the reference engraving matches what the listing claims, how the case and dial compare to photos of the genuine watch, what caliber sits behind the caseback, and whether you can send the watch back. IWC prints its references with the IW prefix and engraves that number on the caseback next to a separate case number, so the first thirty seconds of any inspection tell you a great deal. Get those four checks right and a first copy becomes a watch you can wear without doubt. Skip them and you are buying a photo, not a watch.
Where the number IW938470 comes from
IW938470 does not appear in widely published IWC catalog material, which is the first thing a careful buyer notices. Reference numbers get mistyped, transposed, or cut short when one listing is copied from another, and a seller who never handled the watch will repeat the error without knowing it. Ask for two sharp photos: the caseback engraving and the movement with the rotor visible. A real seller has both on hand. A reseller working from a stock image will stall, promise photos later, or send a picture pulled from a different listing. Any of those answers ends the conversation.
Criteria that decide whether a first copy is worth your money
Reference and caseback engraving
The engraving should be crisp, evenly spaced, and cut into the metal rather than printed on top of it. Compare the font against photos of the genuine piece.
- Pros of a correct engraving: the watch reads as the model it claims to be, resale stays simple, and you avoid an obvious tell at the wrist.
- Cons of ignoring it: a soft or misaligned engraving is the fastest way for anyone familiar with the brand to spot the watch.
Case, dial, and hands
Look at the dial printing under magnification, the alignment of the markers, the date window position, and the finish on the hands. On a first copy these are where money shows up.
- Pros of a well-finished dial: legible printing, level markers, and a date that sits square in its window.
- Cons of a cheap dial: lumpy lume, off-center text, and a date wheel that drifts toward one edge of the aperture.
Movement
Ask which caliber is inside and whether it is quartz or mechanical. A seller who answers in one sentence is a seller who knows the watch.
- Pros of a stated mechanical movement: smoother sweep, serviceable parts, and a movement you can verify by opening the caseback.
- Cons of a vague answer: you cannot price the watch, compare it, or repair it, and resale value disappears.
Return window and paperwork
A return window is the single most useful protection in this market. It turns a risky purchase into a reversible one.
- Pros of a clear return policy: you can inspect the watch in hand, compare it to reference photos, and send it back if the engraving or movement does not match the listing.
- Cons of a final-sale listing: every defect becomes yours, including the wrong reference number.
Three tiers of first copy, and who each one suits
Entry tier
Quartz or basic automatic movement, mineral glass, lighter case finishing. Best for someone who wants the look for occasional wear and accepts the tradeoffs. This tier is the wrong choice if you plan to compare the watch side by side with the genuine piece.
Mid tier (recommended)
Sapphire crystal, a stated automatic movement, solid end links, and a caseback engraving that holds up under a loupe. Best for daily wear, for buyers who care about the details but not about matching a genuine watch part for part. This is where the price-to-quality balance sits for most people searching this reference.
High tier
Closest case geometry, best dial finishing, and the strongest movement. Best for collectors who want the closest visual match and are prepared to pay for it. Worth it only when the seller documents the exact unit in photos and video.
Red flags in IW938470 listings
- Stock photos with no picture of the actual caseback.
- A reference number that changes between the title and the description.
- No answer when you ask about the movement.
- Pressure to pay outside a platform with buyer protection.
- A price so far below every other listing for the same tier that it stops making sense.
What to do next
Request the caseback and movement photos first. Confirm the reference matches what you are being sold. Choose the mid tier unless you have a specific reason to go higher or lower. Pay through a channel that protects the buyer, and inspect the watch within the return window. Counterfeit Swiss watches remain a large global problem, and seizure data published by the Swiss watch industry shows how actively the trade is policed, which is another reason to keep your purchase reversible and your expectations grounded in the photos you were actually sent.