Quick answer: there is no single Portofino Automatic 42. The Portofino line has been sold at 34, 37, 39, 40 and 42mm across different models and years, and the 42 badge in the replica market usually points at either the chronograph case or a seller's own rounding. That matters, because the first thing a copy gets wrong is the reference. If a listing will not show you the exact number stamped on the caseback, stop there.
Start with the reference, not the photos
Genuine Portofino references follow a pattern: IW followed by four or five digits. Ask for a clear, angled shot of the caseback engraving. Real engraving is crisp, deep and evenly spaced. Laser etching on cheap copies looks shallow and grey, and the lettering often crowds the edge. Then check the numbers against the real spec. A 40mm case carries 20mm lugs; larger cases step up to 22mm. If the seller says 42mm and the photos show a slim dress case with 18mm lugs, the description is fiction.
The movement is where the money went
A genuine Portofino Automatic runs an IWC calibre from the 35111 or 32111 family, and that calibre is built on a Sellita base. It beats at 28,800 vph, hacks, hand-winds and holds roughly a 42-hour reserve. First copies almost never use it. What you normally get is a Miyota 9015, a Seagull ST2130, or a decorated clone of an ETA 2892. All three can keep decent time. None of them are Swiss, and no IWC service centre will touch a watch with one inside.
- Miyota 9015: smooth sweep, thin profile, easy for an independent watchmaker to service, common in mid and upper replica tiers.
- Seagull ST2130: a clone of the ETA 2824, louder rotor, good value for the money.
- Clone ETA 2892 or a claim of Swiss ETA: that phrase gets used loosely. Ask for movement photos, not promises.
Tilt the watch and listen. A genuine rotor is near silent in normal wear. A rattle on every turn means a low-grade bearing.
Dial, hands and crystal
Portofino dials are lacquered or silver-plated, and the finish is flat under a light. Copies show orange-peel texture, dust under the crystal, or indices that sit crooked. The hands are leaf-shaped and slim. On cheap versions they are thicker, with burred edges that catch light in the wrong places. Genuine sapphire has anti-reflective coating on both faces, so the dial nearly vanishes at an angle. Single-side coating is the common shortcut, and it is easy to spot.
Case, crown and caseback
Check the crown first. Genuine crowns are signed, screw down cleanly and sit flush with the case band. Polishing is the next giveaway. Lugs on a real Portofino curve in one continuous line, while cheap copies show a hard edge where brushing stops and polishing starts. On the caseback, genuine watches carry the reference, the calibre and a serial number. Replicas often reuse a single serial across an entire batch, which is an easy thing to check if you compare two listings from the same seller.
Look at the date window too. It should be centred and crisp, with a font that matches the reference year. A modern typeface on an older reference is a tell.
Strap and buckle
Genuine watches ship on alligator with a signed pin buckle. First copies ship on embossed calf, and the buckle engraving is usually the weakest part of the whole watch. Budget for a real leather strap. It changes how the watch wears more than any other single upgrade, and it is the first thing anyone handling it will notice.
What you are not buying
A first copy is not a watch with a warranty. There is no service history, no parts support and no resale market that treats it as anything but a copy. In the United States, trafficking in counterfeit goods is illegal, and shipments can be seized by customs. Buy with that in mind. You are paying for a look and a working movement, not for an asset. A seller who claims a replica is genuine is running a different scam entirely, and that is worth walking away from.
Price tiers, roughly
- Under $100: plated cases, quartz or low-grade automatic, printed indices. Skip these.
- $150 to $350: 316L steel, Miyota or Seagull inside, decent dial print. Wearable daily.
- $400 and up: better case finishing, sapphire with double AR, clone Swiss-style movement, closer dial detail.
A short checklist before you pay
- Reference number on the caseback, and it matches the dial layout.
- Case diameter and lug width match the real spec for that reference.
- Movement photos, not a movement description.
- Double AR coating on the crystal.
- Signed crown that screws down smoothly and sits flush.
- Even lug polishing with no hard transition line.
- A return policy you have read, not one you assume.