Quick answer
A replica Portofino Automatic 40 copies the case shape, dial, and strap of the IWC Portofino Automatic. The genuine case measures 40 mm wide and about 9.5 mm thick. Most replicas hold within 0.2 mm of those numbers. The difference sits inside. IWC caliber 35111 has 25 jewels, runs at 28,800 vph, and holds a 42-hour power reserve. Replica makers swap in a Miyota 9015, a Seagull ST18, or a 2892 clone. Case metal is 316L stainless steel on almost every replica. The original uses stainless steel too, so weight lands close.
Numbers to check
- Case: 40 mm diameter, 9.5 mm height, 20 mm lug width.
- Crystal: sapphire with anti-reflective coating on both faces on the original. Many replicas ship mineral glass.
- Water resistance: 3 bar on the original. Replicas seal worse. Do not swim.
- Dial: silver-plated with applied steel indices and a date window at 3 o'clock.
- Strap: alligator grain leather, 20/18 mm taper, tang buckle.
- Head weight without strap: about 50 g to 60 g.
Movement choices
Three movements show up in replica Portofino 40 builds. Miyota 9015: 24 jewels, 28,800 vph, 42-hour reserve, made by Citizen. Seagull ST18: 21,600 vph, about 40-hour reserve. Clone 2892: 21 jewels, 28,800 vph. Ask the seller for the movement name and a photo of the rotor. Sellers who cannot name the movement are resellers of stock they have not opened.
Price bands
Replica prices run about $120 to $450. Under $150 buys a mineral crystal and a low-beat movement. Above $300 buys a sapphire crystal, a decorated rotor, and a better dial print. The genuine watch lists above $5,000 USD at retail. That gap drives the market.
Legal status
Replica watches carry registered trademarks. Import and sale are illegal in the United States under 19 U.S.C. 1526. US Customs can seize shipments. Buyers hold the risk.