The short answer
Buy the 37 mm Portofino Automatic copy that runs a Miyota 9015 or a Sellita SW200, measures about 9 mm thick on calipers, and has applied baton markers with a minute track that stops cleanly at the rehaut. Skip anything listed with a 40 mm case unless you specifically want the chronograph look, and skip the cheapest tier outright. That one decision removes most of the complaints people post after the box arrives.
Fake Portofino 29 Guide: What Buyers Should Know
Everything below is about comparing that watch to a real Portofino, plus the two alternatives worth a look if the pick does not suit your wrist or your budget.
First, the "29" problem
Replica listings throw around numbers that do not map to IWC's catalog. A "Portofino 29" is almost always a 37 mm automatic under a seller's internal code, not an official reference. The watch it copies is the Portofino Automatic 37, so compare specs against that model, not against a chronograph or a 40 mm piece. If a seller cannot tell you the case diameter in millimeters, that is your first data point.
Fake vs genuine: what reads across a table
- Case thickness. The real 37 mm automatic sits slim. Cheap copies run 11 mm or more because the movement rides in a spacer. Calipers settle the argument in seconds.
- Dial printing. Check the minute track and the word "Automatic" under the logo. Genuine printing stays crisp at 10x. Copies smear or sit slightly high.
- Applied markers. They should be straight, polished on the sides, and level with each other. A tilted index at 12 is the thing people notice without knowing why.
- Date window. Font weight and centering matter more than the font itself. A deep-set window with a sharp bevel looks right. A flat printed one does not.
- Hands. Leaf hands should be faceted and catch light along the centerline. Stamped flat hands kill the whole look.
- Strap and buckle. This is where most reps lose points. Alligator-grain leather with a signed pin buckle or deployant is worth the small upgrade.
- Rotor noise. A rattling rotor is audible in a quiet room. The better tiers are quiet when you tilt them.
The options, in order
1. The 37 mm automatic on a 9015 or SW200
This is the pick. Correct diameter, believable thickness, smooth sweep, and a caseback you can live with. Ask for the movement name in writing and a photo of the caseback before you pay. Plan on swapping the strap within a month and budget for it.
2. The 37 mm on a decorated clone movement
Same shell, cheaper engine. From the dial side it looks nearly identical, so this is the value play if the watch never comes off your wrist. The trade is serviceability, and the rotor is usually louder.
3. The chronograph look
Only if you want the busier dial. Pusher feel is the tell, and subdial spacing is where cheap chronograph copies fall apart. I would not start here.
Skip: the bargain tier
Wrong thickness, printed markers, and a crystal that scratches in weeks. You end up buying twice, which costs more than the pick did.
How I check one in ten minutes
- Calipers on diameter and thickness, then compare to the published 37 mm spec.
- Loupe the dial printing and every marker at 10x.
- Wind it and listen. The rotor should be quiet when you tilt the case.
- Run the crown through all positions. It should feel smooth with distinct stops.
- Water test only if the seller states a rating. Otherwise keep it away from taps.
Bottom line: a fake Portofino 29 is worth buying only when the case is right. Get the 37 mm shell, get the movement name in writing, and the comparison to the real thing stops being awkward.