A fake IW545104 is a replica copy of that IWC reference, built to match the look of the original watch at a fraction of the price. The term covers a wide range, from budget quartz lookalikes to high-end replicas that copy the case, dial, and hand-wound movement in real detail. Knowing which one sits in front of you matters, whether you collect replicas on purpose or want to avoid paying genuine money for a copy.
What the IW545104 reference is
The IW545104 is an IWC reference number from the Portugieser family, a line of large dress watches with clean dials and hand-wound movements. Because the design is simple, with no chronograph pushers and few subdials, it is one of the easier references for replica makers to reproduce. That same simplicity works against a bad copy, since every printing fault and every off-center index is easy to see on an open, uncluttered dial.
Why this reference gets copied so often
- A dial layout with few elements, so there is less to get wrong
- A hand-wound movement that costs less to imitate than a chronograph caliber
- Strong demand for classic dress watches at an accessible price
- A shape that photographs well, which helps online sellers move stock
Common tells on a fake IW545104
- Printed text that looks thick, fuzzy, or uneven under a loupe
- Applied numerals or indices that sit crooked or reflect light in a dull way
- Subdial spacing that does not line up with official photos of the reference
- Case edges that feel sharp instead of softly polished
- A crown that winds with a gritty feel or does not click into position
- Case back engraving that is shallow, off center, or in the wrong typeface
- Strap leather that creases the first time the watch is worn
The movement is where replicas separate
Movement choice decides the tier. A cheap copy runs on quartz or a basic automatic with a decorative plate. A high-end replica runs on a hand-wound or automatic movement with visible finishing, blued screws, and a winding feel that matches the original. Ask the seller which movement is inside, and if you can see the case back, compare the finishing and the engraving with reference photos before you commit.
Case, dial, and finishing details
Case proportions are the second giveaway. Compare lug width, case thickness, and the curve of the lugs against published specifications. On the dial, check how the light moves across the applied markers, how the hands are polished, and whether the printing sits on the same plane as the original. Genuine finishing shows crisp edges and even brushing, while a poor replica shows soft edges, uneven gaps, and a dial that looks flat under strong light.
How to avoid buying a fake sold as genuine
- Buy from a dealer with a documented service history and a return policy.
- Ask for the reference number and match it against the official brand listing.
- Inspect the movement and the case back engraving in person or in clear photos.
- Pay with a method that can be traced and disputed if needed.
- Have an independent watchmaker open the case before the sale completes.
Selling a replica as a genuine watch is fraud, and no replica should ever be offered as the real thing. If you want a copy, buy it as a copy, at a copy price, from a seller who states plainly what the watch is. That keeps the transaction honest and keeps your expectations in line with what arrives in the box.