What Is the IWC IW371475?
The IW371475 is a reference in the IWC Portugieser Chronograph line, part of the 3714 generation: a roughly 41 mm stainless steel chronograph with a solid caseback and the IWC calibre 79350, a Valjoux 7750 base. Fakes of this reference fail on movement type, case thickness, subdial function, crystal coating, and caseback engraving before they fail on looks. Verify any example against IWC records and a watchmaker's inspection before you pay.
The reference number splits into the family (IW3714) plus a suffix that identifies the dial, case metal, and strap combination. That is why two watches can share a case and movement and still carry different full numbers.
What Do Fake IW371475 Watches Get Wrong?
A counterfeit can copy a dial from a photograph, but it rarely copies the calibre layout, the case thickness, and the crystal coating at the same time. Function is the fastest place to look.
Movement and subdial behavior
On the genuine watch, the subdial at 12 tracks elapsed chronograph minutes and the subdial at 6 runs the running seconds. Many fakes reverse that, use a 60-minute counter at 12, or hide a quartz module behind a mechanical-looking dial. Ask for a movement photo or a timing-machine reading before you commit.
Case, crystal, and caseback
The 3714 generation uses a solid steel caseback, so an IW371475 with a glass display back is incorrect by definition. Genuine sapphire carries anti-reflective coating on both sides, which gives a faint blue tint instead of the heavy purple glare common on replicas. Case thickness is the other easy check, since counterfeit chronographs often add 1 mm to 2 mm to fit a generic movement.
Dial printing, hands, and date
Genuine dial print is sharp under a loupe, with even spacing between the IWC logo and the Schaffhausen text below it. Fakes show fuzzy edges, thick serifs, and a date font that sits too wide or too bold in the window. Leaf hands should reach the minute track with no gap and no overhang.
How Do You Verify an IW371475 Before Buying?
- Confirm the reference and serial number with IWC or an authorized dealer.
- Have a watchmaker open the case and inspect the movement, rotor engraving, and finish.
- Compare seller photos with official images for that exact reference suffix.
- Match the caseback engraving, warranty card, and box serial numbers.
- Walk away from a seller who refuses an inspection or a return window.
How Much Should a Genuine IW371475 Cost?
Pre-owned 3714-generation Portugieser Chronographs typically trade in the mid four figures to low five figures in US dollars, with box and papers adding a premium. A price far under market, or a new watch with no service history, is the strongest single sign of a counterfeit. Repair math matters too, because a fake has no factory service path and a failed movement often means a total loss.
What About "Super Clone" IW371475 Watches?
So-called super clones aim to match case dimensions and dial layout, and the best of them can pass at arm's length in a photo. They still miss movement architecture, bridge and rotor engraving, subdial gearing, and caseback stamping depth, all of which a watchmaker spots in minutes. In the United States, importing or selling a counterfeit watch is illegal under 18 U.S.C. §2320, and shipments are seized by customs, so the cheaper option carries real legal and financial risk.
FAQ
Does the IW371475 have a display caseback?
No. The 3714 generation uses a solid caseback, so a see-through back is one of the fastest ways to identify a fake.
Can a jeweler tell if an IW371475 is fake?
Yes, if the jeweler opens the case. Dial-only checks catch low-tier fakes, but movement inspection, timing readings, and serial verification are what separate a replica from the genuine article.
Is the IW371475 still in production?
IWC moved the Portugieser Chronograph to the 3716 references with an in-house calibre, so 3714-generation watches are now secondary-market pieces. That makes paperwork and service history more important, not less.
Are all IW3714 watches the same?
They share a case and movement, but each full reference encodes a specific dial, case metal, and strap. Always verify the complete number rather than the family prefix alone.