A replica IW371445 is a third-party copy of the IWC Portugieser Chronograph in stainless steel with a silver-plated dial, gold-toned leaf hands, twin subdials and a black alligator-style strap. The best 1:1 versions match the original's 40.9 mm case width and 12.3 mm profile, use a sapphire crystal with anti-reflective coating, and run an Asian 7750 based chronograph movement. Cheap versions look right in photos but fail on thickness, subdial spacing and date font.
What is the IWC Portugieser IW371445?
The IW371445 is a stainless steel Portugieser Chronograph with a silver-plated dial, gold-plated appliqués and a black leather strap. The genuine watch runs the 79350 calibre, a modified Valjoux 7750 with a 44-hour power reserve and a 28,800 vph beat rate.
Its layout is the reason the model is copied so often: a clean dial, two subdials, a date window at 3 o'clock and thin feuille hands. That simplicity is easy to approximate at a glance and hard to reproduce with real finishing.
What should you check on a replica IW371445?
Case and dimensions
Measure the case before anything else. The genuine reference is 40.9 mm wide and about 12.3 mm thick, so a copy that comes in at 13.5 mm will sit tall on the wrist and look wrong from the side.
Check the lugs too. Portugieser lugs are long and slim, and budget cases often make them thick and stubby.
Dial, hands and subdials
- Hands: leaf-shaped, gold tone, correctly proportioned and not flat stamped metal.
- Subdials: chronograph minutes at 12, running seconds at 6, spacing driven by the movement used.
- Date: window at 3 with a font that matches the original, not a chunky generic wheel.
- Printing: sharp, thin and consistent, with no blur or double lines on the numerals.
Movement
Most replicas use an Asian 7750 chronograph movement, which is a real working chronograph rather than a decorative plate. Ask which factory built the watch and whether the chronograph resets cleanly to zero. A pusher that feels gritty or a seconds hand that stutters points to poor assembly.
Strap, clasp and caseback
Original-style alligator grain leather, a signed deployant clasp and engraved caseback text separate a mid-tier build from a top-tier one. Look at the engraving depth and the lettering crispness, because this is where most copies cut cost.
How much does a replica IW371445 cost?
Entry copies run from roughly 80 to 150 US dollars and usually show wrong thickness, printed subdials and a low-grade movement. Mid-tier versions sit near 200 to 350 dollars with a sapphire crystal and a working 7750. Top 1:1 builds land around 400 to 700 dollars and focus on case profile, dial finishing and clasp detail.
Is a replica IW371445 worth buying?
It is worth it if you want the Portugieser look on a budget and you accept that service and warranty support are limited. It is not worth it if you expect genuine IWC movement finishing, resale value or factory service.
Replicas are not affiliated with, authorized by or endorsed by IWC Schaffhausen, and they should never be represented as genuine watches in a sale. Check the rules where you live before buying or shipping any replica.
Frequently asked questions
Is the replica IW371445 the same size as the original?
The better factories match the 40.9 mm width, but thickness is the common weak point, with many copies adding 1 mm or more.
Does the replica chronograph actually work?
On 7750-based replicas, yes. The start, stop and reset pushers function the same way they do on the genuine watch.