A fake IW371476 is a counterfeit copy of the IWC Portugieser Chronograph, and the fastest way to identify one is the chronograph movement and the dial printing. Genuine watches run IWC calibre 79350, a reworked Valjoux 7750 with a firm pusher click and an instant reset to zero, while most fakes hide an unmodified Asian 7750 clone, a quartz module, or a decorated plate over a cheaper engine. Dial text, hand bevels and engraving depth separate the two even faster.
What is the IW371476?
It is a reference in the IWC Portugieser Chronograph line: a 40.9 mm steel watch with two stacked subdials, a slim bezel and a railway-track minute scale. The reference belongs to the long-running IW3714 family, which stayed in production for roughly two decades before the in-house calibre 69355 generation arrived. The clean, symmetrical layout is exactly why it became one of the most copied IWC models.
How do you tell a fake IW371476 from a genuine watch?
Work from the dial outward and finish with the movement, because each layer of a counterfeit leaves a different trace.
Dial and hands
- Printing: genuine text is thin and razor sharp under a loupe. Fakes show heavier, slightly fuzzy lettering with uneven spacing.
- Subdials: running seconds sits at 6, chronograph minutes at 12. Copies often misalign the rings or print numerals too bold.
- Hands: genuine leaf hands are diamond polished with a visible bevel. Replica hands look flat and reflect light in one plane.
- Markers: applied indices should sit flush and at equal height. A tilted or loose marker is a red flag.
Case and caseback
Genuine cases are machined to tight tolerances, so the lugs feel crisp but never rough, and the caseback engraving is deep and clean. Fakes usually show softened lug edges, lighter polish and shallow laser etching instead of stamped markings. Reference and serial numbers should be sharp and consistent with the paperwork.
Movement
Ask for a movement photo and a short timed video. Calibre 79350 starts and stops with a firm pusher click and snaps back to zero instantly. Clones often feel spongy, reset with a drift, and show a rotor that spins noisily or a balance cock that is printed rather than finished.
Weight and price
The watch should feel dense for its size and balanced on the wrist, with a signed, well-finished strap. If the asking price sits far below the going secondary market rate for the reference, treat that as the strongest single signal.
Are replica IW371476 watches any good?
Quality splits into clear tiers. Entry replicas use printed dials and quartz or low-grade automatic movements and are obvious in the hand. Mid-tier builds copy the case and dial well but keep the Asian 7750 with limited finishing. Top-tier 1:1 replicas match dial print, hand bevels and case geometry and pass a glance, yet they still fail a loupe test on engraving depth and movement finish.
What should you check before buying a replica?
- Confirm the exact reference details, including dial colour, subdial layout and case size.
- Request real photos and a video of the chronograph start, stop and reset.
- Ask which movement is inside and whether it is a 7750 clone or a dressed quartz.
- Check the returns policy and pay with a method that offers buyer protection.
Is buying a fake IW371476 legal?
In the US and most of the EU, selling a counterfeit watch is illegal, and importing one can lead to seizure and destruction. Buying carries lower personal risk but still creates customs exposure. Understand the trade-off before you pay.