The pick first
Buy the tier that gets the case silhouette and the subdial geometry right, not the tier with the busiest movement photos. On a fake IW545170, three things decide whether the watch reads as the real thing across a table: the case profile and lug curve, the small seconds subdial at 6 and its spacing from the dial edge, and the railway-track minute ring. A decorated movement behind a display back is a bonus. Those three are the purchase. If a seller cannot show you a straight-on dial shot and a side profile shot at the same time, you are shopping for a photo, not a watch.
Within that rule, the best all-round choice for most buyers is the spec-match tier described below: correct case proportions, recessed subdial, printed track, and a hand-wound small-seconds movement. The other two options are worth considering only if you have a specific reason to trade one strength for another.
What actually decides quality on this reference
Case profile and lugs
The case is the hardest part to fake well. Look at how the lugs curve down from the caseband and how thin the bezel sits against the crystal. Replicas cut corners by making the case thicker than the reference and by softening the lug tips. Ask for a profile shot with the watch on a flat surface. If the case looks slab-sided, the rest of the watch rarely compensates.
Dial printing and subdial geometry
The minute ring should sit close to the chapter edge with even spacing between the printed strokes. Applied numerals should be raised, with clean edges and no halo of glue. The small seconds subdial is where most replicas fail: it is often printed rather than recessed, and it is frequently placed too far from the 6 position or sized too small. Compare the subdial diameter to the overall dial. It should occupy roughly a quarter to a third of the dial width.
Hands, crystal, and crown
Leaf or feuille hands should be flat and properly finished, with the small seconds hand reaching the subdial track. The crystal should have a slight dome, with anti-reflective coating on the inside only. The crown should be signed, sit flush against the case, and turn without grit.
Movement and caseback
Match the movement type to the variant you are buying. A hand-wound movement with small seconds is the correct family. Check the engraving depth on the caseback and the reference text spacing. Shallow laser etching and wrong font weight are common.
Parameter bands to shop by
- Case diameter: around the 44 mm class. Anything below 43.5 mm or above 45 mm changes the wrist presence.
- Thickness: roughly 12 to 13.5 mm depending on movement. Ask for a caliper photo, not a claim.
- Lug width: commonly 22 mm, with a strap that tapers toward the buckle.
- Subdial: small seconds at 6, recessed, with a hand that ends at the track.
- Crystal: domed sapphire, internal AR, no blue glare from the outside.
- Weight: 70 to 95 g for the head alone on a steel case. A very light head signals a thin case.
- Water resistance: treat any claim above splash resistance as marketing unless the caseback gasket is visible in photos.
Three options, ranked
Option 1: The spec-match build (best for most buyers)
This is the tier that prioritizes case proportions, a recessed subdial, and clean printing over movement decoration. It usually ships with a solid or lightly engraved caseback and a hand-wound small-seconds movement. It is the safest choice for daily wear because the parts you look at every time you check the time are the parts that were done properly.
Option 2: The movement-forward build
Here the money went into a decorated movement behind a display back. The trade is usually in the dial: printing can be slightly heavy, and the subdial may be shallow. Choose this only if you take the watch off and show the back, and if you accept a weaker front.
Option 3: The silhouette build
Right overall look at arm's length, wrong thickness and often wrong subdial spacing. It works for occasional wear under a cuff. It does not survive close inspection, and it is the tier most often sold with borrowed photos of the real watch.
Pitfalls
- Buying from dial-only photos. Insist on a profile shot and a caseback shot.
- Sellers who will not state thickness. That number is measured, not negotiated.
- Date windows added to variants that never had one.
- Over-polished lugs that round off the case edges.
- Stiff straps with the wrong taper, which make a good case look cheap.
- "1:1" language used as a substitute for specifications.
- Paying extra for box and papers on a replica. They add nothing to the watch.
FAQ
Is a fake IW545170 worth buying at all?
Only if you accept it as a replica and judge it on its own construction. The spec-match tier gives you a wearable watch with the right proportions. Lower tiers give you the look and little else.
How do I check subdial spacing from photos?
Measure the dial width in the image, then measure the subdial width. The ratio should land near 0.25 to 0.33. Also check that the subdial center sits on the vertical axis below the main hands.
What movement should I expect?
A hand-wound small-seconds movement is the correct family. Ask for the beat rate and a short video of the seconds hand sweep before you commit.
Should I pay more for a display back?
Only if the front holds up. A display back on a watch with shallow printing is money spent on the side nobody sees.