Short answer
A fake IW544700 is any watch presented as the IWC Portuguese Tourbillon Mystère reference IW544700 that IWC did not make. The label covers a quartz lookalike with a printed "tourbillon" as well as a high-grade first copy with a working rotating cage. Most buyers searching this reference are comparing the top tier, so the checks below focus on that tier.
Know the reference before you compare
The genuine IW544700 sits in the Portuguese family: a large round case, a slim bezel, applied numerals, and an open tourbillon aperture with a retrograde date. Case diameter, thickness, metal, and movement details are published on IWC's own product pages. Pull those figures before you look at any replica photo. Sellers lean on vague wording such as "44 mm style" and "Swiss movement" because exact numbers expose mismatches.
What "first copy" means in the trade
First copy, mirror copy, and 1:1 are seller terms, not standards. No body certifies them. A first copy should have a solid case metal or a close alloy, a sapphire crystal, a decorated hand-wound or automatic movement, and a tourbillon cage that actually rotates. Cheaper fakes use mineral glass, printed dials, and a cage glued in place that never moves.
How to inspect a first copy IW544700
- Ask for the case diameter in millimeters and compare it with the figure IWC lists for IW544700.
- Request a video of the tourbillon cage running for at least ten seconds and confirm the cage completes full rotations rather than twitching.
- Confirm the date changes at midnight and that the retrograde hand returns to 1 after the 31st.
- Study dial print under magnification and check that the indices are applied metal, not paint.
- Have the seller photograph the caseback engraving in raking light.
- Ask for the weight in grams with the strap removed.
- Tilt the crystal under a lamp and look for a blue or violet anti-reflective tint.
- Inspect strap stitching and clasp finish, the two parts sellers downgrade first.
Red flags
- Listings that never show the tourbillon aperture in motion.
- A price far under the going rate for first copy tourbillon pieces.
- A quartz movement described as automatic.
- No weight, no diameter, no movement photos.
- Pressure to pay outside a tracked payment method.
Price and realistic expectations
A first copy IW544700 costs a fraction of the genuine watch, but a working tourbillon still pushes the price above an ordinary replica. Treat any quote that looks too low as a sign the cage is decorative. A first copy is not an investment and will not hold value, so buy it as a wearer. Cross-border shipments also carry seizure risk, and importing goods marked with a protected brand is illegal in the United States and the European Union no matter how good the finish looks. Verify the brand's specification sheet, and treat every seller claim as unproven until a photo or a video backs it.