The fastest way to judge a fake IW545175 is to start with the dial and the case profile, then move to the movement. Those three checks tell you more than any seller description or photo gallery. IWC publishes exact case measurements and dial variants for its references, so a replica that is off by a millimeter or prints its markers at the wrong weight is a visible miss on the wrist. The criteria below are ordered by how quickly a flaw shows up in normal wear, not by how hard the flaw is to fix.
What a fake IW545175 usually is
Search results for this reference mix two very different things: counterfeit watches sold as genuine, and replica watches sold honestly as replicas at different quality tiers. The second group is what most buyers are actually shopping for. Quality inside that group varies far more than the price suggests, and the gap shows up in the dial, not in the paperwork.
Check one: dial printing and index alignment
Look at the logo, the numerals, and the minute track under bright light and at an angle. On a strong replica, printed text sits flat on the dial surface with crisp edges and even spacing between markers. On a weak one, text looks soft or slightly raised, and markers drift toward one side of the dial.
Pros of judging by the dial first
- It is visible in every photo, so you can filter sellers before contacting them.
- Dial flaws show at arm's length, which is how other people see the watch.
- Replacement dials rarely match a flawed original, so this check is hard to fake later.
Cons
- Phone cameras and heavy filters can hide soft printing.
- Some sellers reuse stock photos across several listings.
- You cannot judge lume color or texture without a real close-up.
Check two: case profile, lugs, and finishing
A case that is too thick, or lugs that curve in the wrong arc, change how the watch sits on the wrist. Compare the side profile against the manufacturer's published specifications rather than against other replica photos. Brushed and polished surfaces should meet at a clean line, not a smeared blend. On the caseback, engraving depth and font matter: shallow, thin engraving is the most common shortcut.
Check three: movement and hand behavior
Ask what movement is inside and ask for a short video with the seconds hand visible. A smooth sweep with no stutter at the twelve position suggests a proper automatic or hand-wound movement. A jerky sweep points to a cheap quartz substitute. If the reference is hand-wound, the crown should wind with resistance and no grinding. If it is automatic, the rotor should not rattle when the watch is tilted.
Pros of asking for video
- It confirms the watch exists and runs.
- It reveals sweep quality, which no still photo can show.
- It exposes sellers who only hold stock images.
Cons
- A running watch still says nothing about long-term service life.
- Video compression can make a good sweep look uneven.
Quick checklist before you pay
- Compare dial layout and case measurements against the official spec.
- Request two photos in daylight: straight-on front and full side profile.
- Request one video with the seconds hand and the crown in frame.
- Confirm the crystal material, since sapphire and mineral look different at an angle.
- Confirm the return window in writing before payment.
Which buyer should care most
If you want a watch to wear daily and you care how it reads across a table, the dial and case checks matter most, and paying for a higher tier is worth it. If you are buying as a gift or a display piece that will sit in a box, a mid tier replica with a clean dial is enough, and the movement tier matters less. If you are trying to verify whether a watch offered as genuine is authentic, treat dial printing, caseback engraving, and service history as the three items to confirm with a watchmaker rather than with photos.