The replica IW371687 is a copy of the IWC Portugieser Chronograph, a 41 mm stainless steel watch with a column-wheel chronograph movement and a 46-hour power reserve. Decent copies sell between $250 and $450, and most come from a small group of factories in Guangzhou. Cheap versions under $100 often miss the case thickness, the subdial spacing, or both.
What is the IW371687?
IWC launched the modern Portugieser Chronograph line in 2020 with the in-house calibre 69355. Published specs list a 41 mm stainless steel case, 13.1 mm thickness, 46 hours of power reserve, and 30 m of water resistance. The dial runs two registers: running seconds at 6 o'clock and a 30-minute chrono counter at 12.
Reference numbers in the 3716 family differ by dial color, strap, and buckle. That detail matters when you shop for a copy, because a seller who lists "IW371687" may ship a different dial than the one in the listing photos.
Why this reference gets copied
The Portugieser dial is plain. Two subdials, applied Arabic numerals, leaf hands, and no date window on most versions. Fewer details means fewer places for a factory to make a visible mistake. A copy of this watch can look convincing at arm's length in a way that a copy of a complicated calendar does not.
What specs should a replica IW371687 match?
- Case: 41 mm across, close to 13 mm thick. A 15 mm case sits high on the wrist and shows under a shirt cuff.
- Layout: two registers, one at 12 and one at 6. A third subdial is a mismatch.
- Crystal: sapphire, with an anti-reflective coating on the inside face.
- Pushers: a firm click on start and stop, an instant snap on reset.
- Movement: a decorated Asia A7750 at the mid tier, a 69355 clone at the top tier.
- Dial furniture: applied numerals with polished edges. Printed numerals are the giveaway on budget builds.
Replica grades and price tiers
Budget (under $120)
Mineral glass, a printed dial, and a low-beat movement. The subdials sit in the wrong place, which you can spot in a side-by-side photo.
Mid tier ($150 to $280)
Correct case size, sapphire crystal, and an A7750 with decorative finishing. Dial print is clean. The hands can be flat instead of faceted.
Top tier ($300 to $500)
A clone movement, correct subdial spacing, sunburst brushing on the dial, and a strap or bracelet with the right buckle shape. Sellers label these as "super clone" or "1:1."
How to find a replica IW371687 online
- Fix the variant before you shop: dial color, strap material, and buckle type.
- Compare seller photos against IWC press images. Check subdial position and hand shape.
- Ask for a timestamped photo of the actual unit in stock, not a factory catalog shot.
- Confirm which movement ships with the watch and ask for the beat rate.
- Get the return window in writing before you pay.
- Use a payment method with buyer protection.
Timestamps are the best single filter. A seller with stock can take a new photo in a minute. A reseller working from a catalog cannot.
Red flags to walk away from
- A price far below the normal tier for that spec.
- Studio renders instead of real photos.
- Pressure to pay by wire transfer, gift card, or crypto only.
- No stated return policy, or a "no returns on sale items" line buried in the FAQ.
- A domain registered a few months ago with no transaction history.
What to check when the watch arrives
- Measure the case with calipers. Diameter and thickness both matter.
- Run the chronograph: start, stop, reset five times. The reset hand should land on zero each time.
- Check hand alignment at 12 and 6.
- Look at the dial under a lamp for dust, uneven lume, or a smudged print.
- Wind it fully and time how long it runs.
If the chrono reset drifts or the movement stalls, start the return process in the first week. Most disputes are easier to win before the seller stops replying.
Legal and practical notes
A watch that carries a protected trademark without authorization is a counterfeit good. US Customs and Border Protection can seize such shipments, and importing them for resale carries civil and criminal penalties. Buying one for personal use is lower risk, but it is not zero risk.
Service is the other problem. IWC boutiques and authorized repair centers will not touch a replica, so any repair goes to an independent watchmaker. Budget for that before you buy.
FAQ about the replica IW371687
How much does a replica IW371687 cost?
Expect $150 to $280 for a mid-tier copy and $300 to $500 for a top-tier one with a clone movement. Anything under $120 is a budget build with shortcuts in the case and dial.
Which movement is inside a replica IW371687?
Most mid-tier copies use a modified Asia A7750, a Valjoux 7750 design. Top-tier copies use a clone of the IWC calibre 69355 with a column wheel.
Are the dimensions the same as the genuine watch?
Top-tier copies match the 41 mm diameter and stay within a millimeter on thickness. Budget copies often run 2 mm thicker, which changes how the watch wears.
Can a watchmaker tell it is a replica?
Yes, once the caseback comes off. The finishing on the bridges, the engraving depth, and the movement number are the tells.