A fake IW371736 shows itself first at the dial and the chronograph: on a genuine IWC Portugieser Chronograph the applied indices are faceted and sharp, the subdial hands land exactly on their tracks, and the pushers have a firm, mechanical click. If the printing looks soft under a loupe, the subdial hands stop short, or the pushers feel spongy, the watch is a replica rather than the real reference.
What people mean by fake IW371736
The term covers three different things, and the differences matter when you judge a watch:
- Counterfeit: a watch built to pass as genuine, often with false papers and a copied serial.
- Replica or homage: an openly sold copy that mimics the look but is not presented as original.
- Franken watch: a genuine case or dial paired with aftermarket parts, which is the hardest type to catch.
Most listings people search for under this keyword fall into the first two groups. Knowing which one you are looking at changes what you should inspect.
The five-minute check
- Look at the dial printing with a 10x loupe. Genuine text has clean edges and even spacing between letters.
- Check that each subdial hand reaches its printed track at the zero position.
- Press both pushers. Start, stop, and reset should feel distinct, with no grinding or lag.
- Turn the crown and wind the watch. Resistance should be smooth and consistent.
- Compare the caseback engraving to official photos of the reference. Font, depth, and spacing are common tells.
Dial details that separate real from replica
The Portugieser line is minimal, which leaves few places to hide flaws. Applied numerals and indices on the genuine watch have polished bevels that catch light along one edge. Replicas often use stamped markers with flat tops, or plating that looks yellow next to steel. Subdial rings should sit flush with the main dial; on a fake iw371736 they sometimes sit slightly proud or show a visible gap at the edge. The chronograph seconds hand should align with the 12 o'clock marker when reset, not a hair to the left or right.
Case, crown, and pushers
Case finishing is where replica factories cut the most cost. Run a fingernail along the case flank. Genuine brushing is even and directional, and the transition to a polished surface is a crisp line rather than a soft blur. The crown should be deeply engraved and turn without wobble. Pushers should spring back on their own and feel weighted, not loose.
Caseback and movement
Current-generation Portugieser Chronograph references use an in-house chronograph calibre with a column wheel, and the sapphire back lets you see it. On the real watch, bridges carry clean Geneva stripes, screws are polished and slotted in the same direction, and the rotor engraving is sharp. Replicas usually show coarser striping, unpolished screw heads, and a rotor text that looks stamped. Older references with a solid back need a different check: the caseback engraving depth and the reference and serial font.
Strap, clasp, and packaging
Genuine alligator straps have irregular scale patterns and tight stitching. Replica straps often use embossed calf leather with uniform scales and loose thread. On the folding clasp, check the engraving depth and the smoothness of the release buttons. Boxes and papers are copied well, so treat packaging as supporting evidence, not proof.
Price and seller red flags
- A price far below the current secondary market for the reference.
- Photos borrowed from another listing, or a stock image gallery.
- A seller who refuses a video call or timestamped photos.
- Serial numbers that do not match between the caseback and the papers.
- Pressure to pay outside a protected platform.
If you are buying a replica on purpose, buy it as a replica and expect replica finishing. A fake iw371736 can look convincing across a table, but the movement, the tolerances, and the serviceability are where the difference shows. Judge the watch in your hand, not the listing photo.