The short answer: a fake IW371670 differs from the genuine IWC Portugieser Chronograph mainly in case finishing, dial printing, sub-dial spacing and movement decoration. A well-made replica can match the silhouette and the weight on the wrist, but side-by-side inspection of the crown, the caseback engraving and the feel of the chronograph pushers is where the gaps appear. Use this guide to know exactly what to compare before you commit.
Key Features
- 41 mm stainless steel case with alternating polished and brushed surfaces
- Silver-plated dial with applied numerals and slim leaf-shaped hands
- Two vertically stacked sub-dials showing running seconds and a 30-minute counter
- Column-wheel chronograph movement visible through a sapphire caseback
- Domed sapphire crystal with anti-reflective coating on both faces
- Signed crown and curved lugs that sit close to the wrist
- Hand-stitched alligator-style strap with a steel pin buckle
Materials and Specifications
The reference measures roughly 41 mm across and about 13 mm thick, so it wears like a dress chronograph rather than a sports watch. On the genuine, the dial printing is flat and razor-sharp under a loupe, the sub-dial rings are perfectly concentric, and the caseback engraving is crisp with even depth. Replicas often show slightly thicker print, a softer engraved reference number, or pushers that feel mushy instead of clicking cleanly. Ask for macro photos of the dial, the caseback and the crown before you buy, and check that the strap stitching is even and the buckle is signed.
Shipping and Returns
Reputable replica sellers ship in discreet, well-padded packaging with tracking, and most dispatch within a few business days. Confirm the return window and the condition requirements before ordering, and ask whether a faulty movement is covered by a replacement policy. Keep your order confirmation in case you need to follow up.
How can you tell a fake IW371670 from the real thing?
Look at the sharpness of the dial text, the alignment of the sub-dials at 12 and 6 o'clock, and the finish inside the lugs where polishing is often rushed. The genuine chronograph pushers engage with a firm, distinct click.
Is a replica IW371670 worth buying?
It depends on your expectations. A good replica captures the look and proportions for daily wear, but it will not match the finishing or long-term serviceability of the original.
What should you check before ordering?
Ask for real photos rather than stock images, confirm the case size and movement type, and read the seller's return terms. Verify shipping times and whether tracking is included.