What Is the Replica IW371747?
The replica IW371747 is a counterfeit version of the IWC Pilot's Watch Chronograph 3717, a 42 mm steel chronograph with a day and date window at 3 o'clock. Copies sell from about $90 for a quartz model to $600 for a build sold as a Swiss super clone with an Asian 7750 automatic. None are made by IWC, and none carry an IWC movement.
The 3717 family is one of the most copied IWC lines because the case is simple steel and the movement layout is easy to fake. Buyers in this niche look for a matching case profile, correct dial text, and the day-date placement at a glance.
How Do Replica Grades Compare?
Three tiers dominate the market for this reference. The tier you pick decides the weight on the wrist, how the pushers feel, and how long the watch runs before it needs work.
- Quartz tier ($80 to $150): mineral glass, stamped case, printed dial. Many of these show the wrong subdial spacing because a quartz chrono module cannot mirror the 7750 layout.
- Japanese automatic tier ($180 to $320): Seiko or Miyota chronograph movement, sapphire on the better examples, cleaner case brushing, mushy pushers.
- Asian 7750 tier ($350 to $600): sold as 1:1 or super clone. Closest case, crystal, and dial work, with the day-date font as the weak point.
What Movement Sits Inside a Replica IW371747?
Most automatic copies run an Asian 7750, a Chinese-made copy of the Valjoux 7750. It shares the same subdial layout as the original and the same rotor wobble when you shake it, which is why builders use it.
Asian 7750
The movement runs at 28,800 vph with day-date at 3 o'clock and unidirectional winding. Accuracy out of the box is often poor and needs regulation. Parts and service quality vary from one factory to the next.
Quartz and Mecha-Quartz
Quartz copies keep better time than any automatic at this price. The trade-off is a ticking running seconds hand and, on some builds, a decorative rotor that drives nothing.
Decorated Movements
Caseback photos with blue screws, perlage, and an engraved rotor look convincing. That work is cosmetic and says nothing about the parts underneath.
Which Details Give a Replica Away?
Printing and finishing errors show up under a loupe, and a few show up across a table.
- Day and date font: originals sit centered with thin strokes, while copies drift and use a heavier font.
- Dial text: IWC lettering is sharp and fine, so thicker strokes with soft edges are a tell.
- Lume: the original glows a soft green-white, while budget copies glow blue or not at all.
- Crown and pushers: copies feel gritty and sit too long against the case.
- Caseback: engraving depth, reference numbers, and serials on copies are shallow.
- Crystal: weak anti-reflective coating, so the dial washes out under shop lights.
What Should You Inspect Before Paying?
- Ask for a lume shot, an unedited video with the chronograph running, and a photo of the movement with the caseback off.
- Confirm the subdial layout matches the 7750: running seconds at 9, 30-minute counter at 12, 12-hour counter at 6.
- Compare the day-date font against a photo of the original reference.
- Ask whether the watch was pressure tested. Most copies leave the factory untested.
- Pay with a method that gives you a refund window. Wire transfers and crypto do not.
What Do Replica IW371747 Watches Cost?
Prices track the movement tier, not the dial color. Expect $80 to $150 for quartz, $180 to $320 for a Japanese automatic, and $350 to $600 for an Asian 7750 build sold as a super clone.
Anything under $70 is a quartz toy with a stamped case. Anything over $700 for this reference is a seller padding the price on the same Asian 7750 that other sites list for less.
Are There Legal or Practical Risks?
Counterfeit watches violate trademark law in the United States and the European Union. Customs officers seize parcels and destroy them, and sellers face civil suits. Buying one is not a neutral act.
Practical risks matter too. There is no warranty, no service network, and resale value near zero. A $400 copy is still a $400 loss the day you want your money back.
Frequently Asked Questions
Does the replica IW371747 use an IWC movement?
No. IWC caliber 79320 is a modified Valjoux 7750 finished by IWC, and it never ships in a counterfeit. Copies use an Asian 7750, a Seiko or Miyota chronograph, or quartz.
Is a super clone IW371747 waterproof?
Do not assume it. Sellers claim 30 to 50 meters, but gaskets on copies are thin and cases are not tested. Have a watchmaker pressure test it before you swim.
How can I tell a replica from the real thing?
Start with the day-date font, the dial printing, and the crystal coating. Then check caseback engraving depth and the serial. A watchmaker can open the case in two minutes and settle the question.
Why is the IW371747 copied so often?
The 3717 family sells in volume, has a plain steel case, and uses a movement that Chinese factories already produce. That mix makes it cheap to copy and easy to sell.