Short answer
Fake IW545142 watches do exist. The reference sits in IWC's Portugieser family, and its clean dial, large case, and hand-wound movement make it a target for replica makers. A good fake can look right in a phone photo. The tells show up in the movement, the engraving, and the small details that are expensive to copy well.
What the IW545142 is
The IW545142 is a hand-wound Portugieser with a clean, open dial and a small seconds subdial. It is not a chronograph and not a dive watch. That matters because fakes often blend features from different references. Start with the caseback reference, then match the dial layout, case shape, and movement to that exact reference. Do not trust a listing that calls it a Portugieser but shows a chronograph dial or a date window that should not be there.
Why this reference gets faked
Simple-looking watches are harder to fake than people think. The outside is easy to copy. The movement is not. A replica maker can stamp a case and print a dial, but a real IWC hand-wound movement has finishing, engraving, and a feel that a generic movement does not match. That is why the movement photo matters more than the wrist shot.
Quick checks before you buy
- Caseback engraving. The reference should read IW545142 cleanly. Look at font, depth, and spacing. Fake engravings often look shallow or lasered.
- Dial print. Under magnification, the IWC name and Schaffhausen text should be crisp. Fake print is often thicker, fuzzy, or slightly uneven.
- Hands and subdial. Check hand shape, length, and finish. The small seconds hand should sit correctly and move smoothly.
- Crown and case finish. The crown should feel solid and sit flush. Case edges should be sharp but not rough.
- Movement. Ask for a clear photo of the movement, not just the caseback. A real IWC hand-wound movement has proper finishing and markings. A decorated plate or generic movement is a red flag.
The movement is the real test
If a seller will not show the movement, stop. On a hand-wound Portugieser, the movement is the point. I look for clean bridges, polished screws, and engraving that matches the reference. A watchmaker can confirm the movement and case in minutes. A photo of the balance and bridges beats any story about box and papers.
Paperwork, price, and seller behavior
A full set helps, but it is not proof. Fake boxes and papers exist. Price is a signal too. If an IW545142 is priced like a fashion watch, it is not a bargain. Ask for a movement photo, serial, and return policy. If the listing says "1:1" or "super clone," it is a replica, not a genuine watch. That sounds obvious, but listings blur the line all the time.
Bottom line
Fake IW545142 watches are out there, and the better ones are decent at arm's length. Buy the seller and the movement, not the dial photo. If you cannot inspect the movement or verify the reference with a watchmaker, assume the risk and price it as a replica.