Short answer
A fake IW545122 is any non-genuine watch built to look like IWC reference IW545122. Most buyers searching that term mean one of two things: a low-grade counterfeit assembled from catalogue photos, or a first copy, the top replica tier with a cloned case, sapphire crystal, and a movement that matches the functions of the original. Grade any example on five points: reference accuracy, case geometry, dial print, movement behavior, and strap hardware. A first copy passes all five. A cheap fake fails at least two, and the failures show up in the first thirty seconds of handling.
Prerequisites
- The official specification for IW545122 (case diameter, thickness, movement type, dial layout) from IWC reference data
- Macro photos of the actual unit being sold, not factory renders or borrowed images
- A short video showing the seconds hand, the crown pulled to each position, and the caseback in raking light
How to grade the watch
- Confirm the reference. Read the caseback engraving and compare the number sequence to the official IW545122 listing. Fakes often carry a plausible-looking number with the wrong digit count or spacing.
- Measure the case. Ask for caliper readings of diameter and thickness. A replica built on a generic case runs larger or thicker than the original by a visible margin.
- Inspect the dial print under magnification. Genuine-grade printing sits flush with sharp edges. Cheap fakes show ink spread, uneven stroke weight, and indices that sit off-center from the minute track.
- Check the hands. Look for the correct length reaching the minute track, flat-polished flanks, and a seconds hand that sweeps without stutter.
- Examine the crystal. A first copy uses sapphire with an anti-reflective coating. Tilt the watch toward a light source and confirm the dial stays readable with a faint blue or colorless cast, not a mirror glare.
- Operate the crown through every position. Winding should feel firm with no grainy drag. Date or time setting should click into place without slack.
- Run the movement for 24 hours and compare the gain or loss against a timegrapher reading. Ask the seller for that reading before payment.
- Inspect the strap and buckle. Stitching density, edge paint, and tang or deployant finishing are the cheapest places for a maker to cut corners, and the easiest to photograph.
- Weigh the watch. Posted weights for the genuine reference give you a quick sanity check once you know the strap contribution.
What separates a first copy from a counterfeit
A first copy is judged against the original on tolerance, not on appearance alone. Case profile, lug curvature, crown size, and the depth of the caseback relief all get measured. Counterfeits copy the outline and stop there. If a seller cannot supply caliper numbers, macro dial shots, and a timegrapher result, treat the piece as ungraded regardless of the photos.
Paperwork and pricing
Authentic IWC paperwork does not travel with a replica, so any listing that pairs a box and card with a low price is selling you a story. Compare asking prices against the spread you see across replica tiers: a price far below the market for a first copy usually means a lower grade with a swapped movement. Pay only after you have the video, the measurements, and a return window in writing.