The IW371790 belongs to the Portugieser family of chronographs, the reference tied to a 42mm stainless steel case, twin sub-dials at twelve and six, and the wafer-thin bezel that made the line so recognizable. This replica version is built for buyers who want that profile on the wrist without chasing an original at auction. Every piece is inspected and timed before it leaves the shelf.
Key Features
- 42mm stainless steel case with a slim polished bezel and period-correct profile
- Working chronograph: central sweep seconds plus a 30-minute totalizer
- Lacquered dial with applied indices and leaf-shaped hands
- Automatic self-winding movement with a see-through caseback
- Sapphire-coated crystal for scratch resistance and reduced glare
- Leather strap or steel bracelet option with quick-release spring bars
- Gasketed caseback and crown for everyday splash protection
Materials and specifications
The case is machined from 316L stainless steel with brushed flanks and polished chamfers, measuring about 42mm across and roughly 13mm thick. Sapphire coating covers both the front crystal and the exhibition back. Inside sits an automatic chronograph calibre with 7750-derived architecture, reliable, serviceable and easy to regulate. Lug width is 20mm, so most aftermarket straps fit straight on, and the lacquered dial carries the same depth as the original under direct light.
Shipping and returns
Orders ship in discreet, unbranded packaging within one to two business days, with tracking emailed as soon as the parcel moves. If the watch arrives faulty or does not match the listing, contact us within seven days of delivery for a replacement or a refund, with no restocking fee.
Is the fake IW371790 water resistant?
Yes, for daily wear. The caseback gasket and crown seals handle rain, hand washing and splashes, but the watch is not rated for swimming or diving, so keep it out of the pool.
How close is it to the original?
Dimensionally it is very close, since case size, dial layout and strap width all follow the original. The differences appear in the movement architecture and the finishing under a loupe, which is why it is sold as a replica rather than the genuine article.
Will it fit a small wrist?
At 42mm with short lugs it wears comfortably on wrists from about 6.25 inches up. If you land between holes on the leather strap, a 20mm replacement is inexpensive and easy to swap.