What a fake IW545177 is

A fake IW545177 is a copy of the IWC Portugieser Hand-Wound, reference IW5451, a 44 mm steel dress watch with a small seconds subdial at 6 o'clock and a hand-wound movement under a sapphire case back. The reference is simple by design, which is why replica factories build it at several quality levels. The differences between a cheap copy and a good one sit in four places: case thickness and lug shape, dial printing and subdial depth, movement decoration and origin, and the strap and buckle. Judge those four and you can grade any example in a few minutes.

Set your reference points before you look at the copy

You cannot grade a replica without knowing the original layout. Fix these details in your head first, then compare.

  • Case: 44 mm diameter, slim profile, long straight lugs with a light curve at the tip.
  • Dial: small seconds subdial set at 6, applied numerals or batons, leaf-shaped hands, fine minute track.
  • Case back: sapphire display back, so the hand-wound movement is visible.
  • Finish: polished case bands with brushed sections on the lug tops, crisp edges where the two meet.

How to inspect a replica IW545177

  1. Measure the case diameter and thickness with calipers and compare both numbers to the reference.
  2. Run a fingernail along the lug edges to feel for soft, rounded corners that polishing has blurred.
  3. Tilt the dial into a light source and read the printing on the subdial and the minute track at arm's length.
  4. Look at the subdial under a loupe and check that the recess has real depth and a stepped edge.
  5. Turn the crown through a full wind and count the turns, then listen for grit or a spring that binds.
  6. Open the case back and inspect the bridges, the engraving, the jewel settings and the balance finish.
  7. Check the strap stitching density, leather grain on both sides, and the tang or deployant fit on the buckle.

Where the cheap copies fail

The first tell is usually the case profile. Lower-grade copies run thick to fit a stock movement, so the watch sits high on the wrist and the lugs look stubby. The second tell is the dial. Sharp printing holds its edge at 30 cm; blurred printing shows a halo around the numerals, and the subdial sits flat instead of recessed. The third tell is the case back. A decorated rotor-style plate on a watch that should be hand-wound is a hard fail, and laser-etched engraving looks grey compared with cut engraving.

Movement quality decides price more than anything else. A serviceable hand-wound calibre with proper Geneva stripes, blued screws and clean perlage is the top tier. A Chinese clone with printed stripes and plastic-looking jewels is the bottom tier, and it will show in the winding feel before it shows on the bench.

Questions to ask before you pay

  1. Ask for the case diameter and thickness in millimetres, measured with calipers.
  2. Ask for macro photos of the dial printing, the subdial and the case back engraving.
  3. Ask which movement is inside and whether it is hand-wound or automatic.
  4. Ask what the strap is made of and whether the buckle is stamped or solid.
  5. Ask about the return window and what counts as a defect.