Short answer
A fake IW544720 is a watch that carries IWC reference markings but was not built by IWC. Copies of this reference appear on auction sites, classifieds, and social media listings, often with a story about a lost box or missing papers. The quickest way to sort a genuine watch from a copy is to check four things in order: the reference and serial engraving, the movement, the dial printing under magnification, and whether the paperwork serial matches the case.
Before you start
- A 10x loupe or a phone macro lens
- Calipers or a ruler accurate to 0.1 mm
- Photos of a known genuine example for side by side work
- A watchmaker who services IWC calibers
How to check an IW544720 step by step
- Photograph the caseback engraving in flat light. Genuine engraving is cut into the metal with crisp inner edges. Stamped or laser-printed copies look shallow and rounded.
- Read the reference number character by character. Copies often add a digit or change one numeral, so the watch passes a thumbnail glance and fails a direct comparison.
- Compare the serial on the caseback with the papers. The caseback, warranty card, and service record should carry the same number in the same font and spacing.
- Inspect the movement. On a display back, check the finish, jewel count, bridge engraving, and the layout of the rotor or ratchet against reference photos. Copy movements give themselves away with machine-applied stripes and painted lettering.
- Measure the case. Check diameter, lug width, thickness, and crown size against published specifications for the reference.
- Study the dial with a loupe. Look at print edges, text spacing, applied marker height, and lume color. Copy dials show fuzzy print, uneven markers, and markers that sit proud of the dial surface.
- Check the hands and crystal. Genuine hands are finished on every side. Compare the crystal profile and any anti-reflective coating with the genuine part.
- Test the winding and setting action. A hand-wound IWC should feel smooth with clear stops. Gritty winding, a loose crown, or a date that changes late points to a substitute movement.
- Question the price and the seller story. If the watch trades far below the market range for the reference, or the seller refuses a watchmaker inspection, walk away.
- Get a second opinion. A watchmaker with an IWC parts account can open the case, read the movement number, and confirm whether the internal parts are factory components.
Red flags that settle the question
- Serial does not match the papers
- Engraving depth or font differs from reference photos
- Movement finish looks painted rather than applied
- Seller refuses an in-person inspection or a return window
If the watch turns out to be a replica
Some sellers list copies as copies, at a copy price, and the buyer knows what is being bought. That is a different transaction from a watch sold as genuine. If you buy a replica, get the disclosure in writing, keep the listing, and do not expect factory service or parts support. If you were sold a copy as a genuine IWC, collect the listing, the payment record, and a watchmaker written opinion before you ask for a refund or open a dispute.