A fake IW371779 is a counterfeit copy of an IWC watch sold under that reference number. Genuine IW371779 watches carry an IWC-signed movement, matching serial engravings, and full box and papers. Fakes run from $30 quartz models to $600 "super clones" that copy the outside of the case but not the caliber inside.

What Is the IW371779 Reference?

IWC uses a four-digit reference code to tie a watch to a family and a specific variant. The 371779 falls in the 3717 block, a line of stainless steel chronographs with sapphire crystals and automatic calibers. Steel chronographs in this block measure about 40 mm to 43 mm across.

IWC updates dial colors, bracelet options, and movements across a production run, so two watches with the same reference can differ in small ways. Confirm the case size, caliber, and year on IWC's own reference page or an authorized dealer listing before you compare a watch in hand.

How Do You Tell a Fake IW371779 From a Genuine One?

Compare five things: the movement, the dial, the case finish, the weight, and the paperwork. A genuine watch passes all five. Most replicas fail at least two.

1. Movement and Caseback

Open the caseback or ask the seller for a photo of the movement. A real IWC caliber shows an engraved IWC logo, the caliber number, blued screws, and striped finishing on the rotor and bridges. Replica movements show stamped text, plain rotors, and a caliber number that does not match the watch.

Listen to the rotor. A Valjoux 7750 and its Chinese copies spin with a rough wobble you can feel through the case. That wobble is normal for the movement. A caseback engraving that names a different caliber is not.

2. Dial, Hands, and Date Window

IWC prints dial text with sharp edges and sets applied indices at an even height. Fakes show fuzzy printing, indices that sit at odd angles, and a date window that is off center or shows the wrong font.

3. Case and Bracelet Finish

Genuine brushing runs in one direction along the lugs and bracelet links, and polish meets brush at a hard, clean line. Replicas show rounded edges, uneven brushing, and gaps where the end links meet the case.

4. Weight and Balance

Weigh the watch on a kitchen scale. A steel IWC chronograph on a metal bracelet sits in the 150 g to 200 g range. Most fakes land 15 g to 30 g lighter because the case walls and links are thinner.

5. Serial Numbers and Papers

Genuine IWC watches carry the same serial number on the caseback, between the lugs, and on the movement. All three must match. A fake often repeats one serial across thousands of units.

A box, a warranty card with a dealer stamp, booklets, and a dated receipt all count as proof. A seller who offers stock photos and a no-return policy is a red flag on its own.

What Do Replica IW371779 Watches Cost?

Replica pricing splits into three tiers. Each tier buys a different level of cosmetic accuracy and a different movement.

• Budget ($30 to $80): quartz movement, mineral glass, plated case that wears through in months.
• Mid range ($120 to $300): automatic Chinese 7750 clone, sapphire crystal on some models, correct dial layout.
• "1:1 super clone" ($400 to $900): cloned case dimensions, close dial printing, ETA or Sellita base movement.

No tier uses an IWC movement, and IWC will not service or authenticate a counterfeit.

Red Flags in Online Listings

• A price far below the market for a genuine example.
• Photos lifted from IWC's site or reused across several sellers.
• Refusal to send a movement photo or a photo of the serial engraving.
• A warranty card with no dealer name or a blurred stamp.
• Pressure to pay by wire, gift card, or crypto with no buyer protection.
• "Swiss made" claims on a watch priced under $300.

Is a Fake IW371779 Legal to Buy or Sell?

In the United States, selling, distributing, or importing a counterfeit watch violates the Trademark Counterfeiting Act and the Lanham Act. Customs can seize the parcel, and the buyer loses the money with no recourse.

Personal use seldom brings criminal charges, but the watch carries no warranty, no service path, and no resale value at a legitimate dealer.

FAQ About Fake IW371779 Watches

Does a fake IW371779 keep accurate time?

A decent 7750 clone runs about 10 to 20 seconds a day off true time. Quartz copies hold within a second or two a day, but their chronograph subdials often work as decoration only.

Can a watchmaker repair a replica?

Many independent watchmakers refuse to touch counterfeits. Parts come from the same gray supply chain as the watch, so a repair can take weeks and cost a large share of the purchase price.

Does a replica hold its value?

No. Replica watches lose most of their value on resale, and the forums that trade them publish no reliable price history.

How do I confirm a genuine IW371779?

Take the watch to an IWC boutique or an authorized service center. They match the serial to IWC's records and open the case to verify the caliber.

What if I already bought a fake?

Stop the payment if you can, file a dispute with your card issuer, and report the listing to the platform. Keep the photos and messages as evidence.

The Short Version

A fake IW371779 copies a look, not a watch. The case can fool a photo. The movement, the serial engravings, and the paperwork are where a counterfeit falls apart, and those are the three things to check first.