The replica IW371408 is a copy of the IWC Portugieser Chronograph, a 41mm steel watch with a two-register chronograph dial and subdials stacked at 12 and 6. Good copies match the case profile, dial layout, and hand length, while cheap ones miss the subdial spacing and print quality. You judge a replica by three things: the movement inside, the dial and case finishing, and the feel of the crown and pushers.
What the IW371408 reference covers
IW371408 sits inside the IWC Portugieser Chronograph family, a line built around a thin bezel, a wide dial, and a vertical chronograph layout. Replica makers pick this reference because the design looks plain, so small errors show fast. IWC publishes the case and calibre data on its own site, and that listing is your baseline for comparison.
Numbers to confirm before you order:
- Case diameter: 41mm on the steel Portugieser Chronograph versions
- Case thickness: about 13mm
- Lug width: 20mm on most straps in this family
- Crystal: domed sapphire with coating on both faces
- Water resistance: rated for splashes, not swimming
Exact figures shift between versions, so pull the spec sheet for the reference you want rather than trusting a seller's copy-paste.
Where replica quality shows
Two copies of the same reference can sit $300 apart in price and look the same in a phone photo. The difference lives in print quality, hand-finishing, and the movement.
Dial and hands
Start with the subdial rings. On a strong copy the rings print clean with even spacing, and the small seconds hand reaches the markers without overshooting. Cheap copies smear the print, push the subdials toward the center, and fit a short hour hand.
Applied numerals and the brand logo need sharp edges. Markers with rough edges catch light in the wrong way, and that shows at arm's length.
Case and pushers
This family mixes brushed sides with polished bevels. A replica that polishes the whole case, or brushes the whole case, drops that contrast and reads as a cheaper watch.
Press the chronograph pushers before you accept the watch. They should start, stop, and reset with a firm click and no grinding. Pushers that wobble or feel soft point to a low-grade movement and a case machined below spec.
Strap and hardware
Genuine versions ship on alligator or calf leather with a signed pin buckle or deployant clasp. Replica straps use embossed leather that stiffens after a month, and the buckle engraving is shallower. A strap swap is cheap, so treat this as the smallest problem.
Which movement sits inside a replica IW371408?
- Quartz: the cheapest tier. The seconds hand ticks once per second, and the chronograph subdials often do nothing.
- Asian 7750 automatic: the workhorse. Runs at 28,800 vph, gives a smooth sweep, and handles chronograph duty.
- Clone or modified 69355: built to mirror the current in-house IWC layout, with the rotor and bridges finished to look the part.
- Decorated movements: plain movements with engraved plates and a branded rotor, sold as something better than they are.
A quartz watch inside this case is a giveaway, since the real watch is mechanical. If a seller cannot name the movement, assume quartz or a low-grade automatic.
How much do replica IW371408 watches cost?
Prices cluster in three bands, and each band buys a different level of accuracy.
- $60 to $150: quartz or basic automatic, wrong subdial spacing, plated case, mineral glass.
- $200 to $350: Asian 7750 inside, correct 41mm case, sapphire crystal, dial print that holds up in daylight.
- $400 to $600: clone movement, better brushing and bevels, coated sapphire, closer strap hardware and engraving.
Above the top band you pay for scarcity, not for a better watch. Anything listed under $50 is a fashion watch with a chronograph look.
How do you check a seller before paying?
- Ask for the factory name and the version number, not just the reference.
- Request QC photos of the exact watch you will receive, shot straight on with the dial facing the camera.
- Confirm the return window and the policy if a shipment is seized.
- Pay with a method that lets you open a dispute.
- Compare the seller's photos against IWC's own product images side by side.
QC photo checklist
- Dial print: no smears, subdials centered on the vertical axis
- Hand alignment: all hands zero at 12 after a chronograph reset
- Date window: centered in the aperture with no gap at the edge
- Bezel and case: even brushing, aligned pushers, crown flush to the case
- Caseback: correct reference number and engraving depth
- Strap: straight stitching, buckle or clasp matching the version you ordered
Frequently asked questions
How close is a replica IW371408 to the real watch?
At arm's length a top-tier copy reads as a Portugieser Chronograph. Under a loupe the print, the movement finish, and the leather differ from the genuine article. The gap grows when someone handles the watch and winds it.
Does the replica use an IWC movement?
No. IWC builds its own calibres in Schaffhausen. Replicas use Asian 7750 variants or clone movements that copy the layout and the look, not the parts.
Is the case size correct?
On the better versions, yes, at 41mm. Cheap versions run 40mm or 42mm, which changes how the watch sits on a 6.5-inch wrist.
What are the most common mistakes buyers make?
Two stand out. Paying high-tier money for a mid-tier watch, and skipping QC photos before shipment. Always ask for photos of the actual unit, not a stock image from a catalog.
What to compare before you order
Build a short list: case diameter and thickness, subdial positions, movement name, and crystal material. Send that list to the seller and ask for answers in writing. A seller who dodges the movement question is telling you the answer.