A replica Portofino listed as "ref IW938" is almost never a copy of a watch with that exact reference. Real IWC Portofino codes are longer strings in the IW#### family with a case or dial suffix attached. "IW938" reads like a truncated or invented shorthand. So the first job is to pin down which Portofino the seller means: the Automatic, the Chronograph, or the Hand-Wound moon phase. Ask for the full reference, the case diameter in millimeters, and a straight-on photo of the dial. A seller who moves these regularly answers in minutes. One who doesn't sends a stock photo and a discount code.
Why the reference matters more than the photos
Reference numbers encode the model family, the case metal, and the dial variant. Get the full number and you can compare the replica against the genuine spec sheet line by line: case size, lug width, crystal type, water resistance, subdial layout. Skip that step and you're judging a watch by glamour shots, which is exactly how mismatched parts get sold. A 42mm chronograph case with a 39mm dial is a common slip, and it's invisible in a tilted photo.
What to inspect on the watch itself
- Case diameter and thickness. The Portofino Automatic sits near 40mm. Chronograph versions land somewhere between 39 and 42mm depending on generation. Ask for caliper numbers, not vibes.
- Dial printing. Look for applied indices that sit level, crisp brand text, and a date window that lines up with the aperture. Fuzzy text at 12 o'clock is the single easiest tell.
- Hands. Leaf-shaped hands should be polished on top with clean edges. Painted hands look flat and slightly thick under a phone camera.
- Crystal. Sapphire with a proper anti-reflective coating nearly disappears at an angle. Mineral glass shows a gray haze.
- Caseback engraving. Deep, even lettering with no burrs. Laser-etched codes that rub off with a thumb are a bad sign.
- Strap and buckle. Genuine-feel leather with stitched edges, and a tang or deployant that closes with a solid click.
Movement tiers
Most Portofino-style replicas run one of three things. Cheap quartz, which gives you a smooth sweep only on the seconds-hand variants and a ticking small seconds on others. A basic Chinese automatic, usually a 21-jewel design, which is fine and serviceable. Or a decorated clone automatic with a rotor styled like the genuine caliber, which costs more and looks better through a display back. Ask which one, and ask for a short video with the watch running and the crown pulled to the time-setting position. A hacking seconds hand that stops cleanly is a decent proxy for build quality.
Price bands you'll see
Under $100 buys a quartz copy with a stamped caseback and a stiff strap. Between roughly $150 and $350 is where most respectable Portofino automatics sit, with sapphire, decent finishing, and a wearable bracelet or strap. Above $400 you're paying for a decorated movement, better dial furniture, and closer case proportions. Anything above that should come with real photos of the actual unit, not a catalog render.
Red flags
- Only stock images, no close-ups of the dial or caseback.
- A reference number that changes between messages.
- Claims of genuine Swiss movement at a three-figure price.
- No return window, or a return policy that only covers "defects" the seller defines.
- Pressure to pay outside a trackable method.
The legal side, briefly
Counterfeit goods carrying a trademarked brand are subject to seizure at the US border, and selling them exposes a business to trademark claims. That's worth knowing before you order, regardless of how the listing is worded. Buy from sellers who describe the watch as a replica in plain terms rather than pretending it's genuine.
Bottom line
Treat "ref IW938" as a prompt to ask questions, not a specification. Nail down the full reference and case size, get real photos of the actual watch, confirm the movement type, and buy from someone with a return policy. The Portofino is a quiet, dressy design, and quiet designs punish sloppy copies. The details you can name are the ones worth paying for.