Short answer first: IW371411 is not an official IWC reference. IWC formats references as IW3714 plus two more digits that encode dial, strap, and case variant, so a search for "fake iw371411" is almost always someone hunting a replica of the Portugieser Chronograph IW3714 family. That matters because the watch you are being shown may not match the number in the listing, and the details of the variant are exactly where a replica gives itself away.
What the number actually points to
The Portugieser Chronograph ref. IW3714 is a 40.9mm steel watch, roughly 12.3mm thick, with a clean two-register dial. Running seconds sit at 6 o'clock and the 30-minute chronograph counter sits at 12. There is no running seconds hand in the center, no date on the classic versions, and no luminous paint on the leaf hands. Water resistance is rated at 3 bar, which is to say it is a dress watch that happens to time things.
Fake IW371411 Synonym: Other Names for an IWC 3714-11 Replica
Original IW3714 examples used the 79350, a Valjoux 7750 base reworked by IWC. Later Portugieser Chronographs moved to the in-house 69355. If a listing calls a watch IW371411 and shows a 41mm case with the newer movement, the number and the watch disagree. Ask which one you are buying.
The specs a replica has to fake
- Case: 40.9mm, polished, with a slim bezel and long lugs
- Thickness: about 12.3mm, and this is the hardest number to hide
- Crystal: sapphire front, display back on the movement side
- Dial: applied faceted numerals, railway minute track, subdials at 12 and 6
- Movement: 79350 (7750 base) or 69355, both with column-wheel feel on the pushers in the newer version
Tells I check, in order
- Thickness. A 7750-based copy usually lands 1.5mm to 2mm thick. It sits tall on the wrist and the caseback bulges.
- Dial printing. The IWC wordmark and the Schaffhausen line should be thin and crisp. Copies print heavy, or the letters blur at the edges.
- Subdial hands. Originals are small, faceted, and finished. Replicas often use flat painted hands that read dull under light.
- Applied numerals. Look at the bevel on each index. The polish should catch light along one clean edge, not a soft rounded blob.
- Caseback. Through the display back you see the rotor engraving, the jewel count, and the finishing. Wrong text, wrong engraving depth, or a rotor that looks stamped rather than cut is a fail.
- Pushers and crown. The chronograph pushers should start and stop with a crisp click. Mushy travel and a wobbly crown are common on cheap copies.
- Strap. Embossed cowhide pretending to be alligator is easy to spot at the edges where the grain repeats.
Why this model is harder to copy than a dive watch
The Portugieser is a dress chronograph. There is no rotating bezel, no chunky case, and nowhere to hide sloppy work. Everything the buyer sees is dial printing, hand finishing, and case proportion, and all three cost money to get right. That is why the replica market for this reference is thinner than for a Submariner, and why the good ones cluster at the top of the price range while the cheap ones look wrong from a foot away.
Price tiers and what changes
At the low end, expect a painted dial, a thick case, and a basic 7750 with a noisy rotor. Mid tier fixes the dial printing and the case proportions but often keeps a slightly tall caseback. The top tier gets the thickness close, the numerals right, and the movement decorated to look like the 79350. None of them are the real watch, and none come with a service history.
Questions to ask before you pay
- What is the measured thickness, calipers on the case, not from the listing text?
- Which movement is inside, and is the chronograph a modular add-on or an integrated 7750 layout?
- Can you send a macro photo of the dial printing and the caseback engraving?
- Does the reference on the caseback match the number in the title?
The part people skip
Selling counterfeit watches is illegal in the US and in most of Europe, and a replica has no warranty, no parts support, and no resale value beyond what you paid. If you want the look on a budget, a homage with a different name on the dial gets you the same silhouette with a real warranty. If you want the actual IW3714, buy from a dealer who will open the caseback with you. Know what you are getting into before the money leaves your account.