The short answer: buy the fake Portofino Small Seconds 39 that gets the case proportions and the subdial position right, because those two details decide whether the watch reads as a Portofino on the wrist. A 39 mm case should feel slim, sit near 9.5 mm thick, and carry a small seconds hand at 6 o'clock with a subdial that hugs the lower edge of the dial. Movement quality comes next, strap quality after that. If a listing cannot show those measurements next to a caliper in a photo, keep looking.
What to look for before you buy
- Case shape: a round, low-profile case with gently curved lugs. Portofino cases are dress-watch thin, so a bulbous midcase is the first giveaway.
- Subdial geometry: the small seconds ring should be centered on the 6 o'clock axis and sit close to the rehaut. Replicas that reuse a movement with a different gear train often leave a visible gap or push the subdial too high.
- Dial finish: applied markers with polished edges, a clean lacquer surface, and text that is printed at consistent weight. Fuzzy printing and uneven spacing are common on cheap builds.
- Hands: leaf-shaped and polished, with a small seconds hand that reaches the printed track. Painted chrome hands look flat under light.
- Crystal: sapphire with an inner anti-reflective coating. A domed mineral crystal distorts the dial edge.
- Movement: a hacking, hand-winding automatic with a smooth sweep. Ask for a photo of the movement and a short video of the seconds hand.
Parameter bands that separate good from bad
Use these ranges as a filter when you compare listings. Numbers outside the band usually mean a generic case was used instead of one shaped for this model.
- Diameter: 38.8 mm to 39.3 mm
- Thickness: 9.2 mm to 10.2 mm
- Lug to lug: 45 mm to 47 mm
- Lug width: 20 mm, which keeps strap options open
- Subdial diameter: roughly 11 mm to 13 mm, centered on the 6 o'clock line
- Beat rate: 28,800 vph for a clean sweep, 21,600 vph acceptable on budget builds
- Power reserve: 38 to 42 hours
- Caseback: solid, engraved, and flush with the case sides
Pitfalls that cost money
- Listing photos that show a genuine watch. Ask for timestamped images of the actual piece.
- Subdial printed off-center, or a subdial hand that overlaps the marker track.
- A case that measures 41 mm or more. It will wear like a different watch and feel top heavy.
- No movement photo, or a refusal to send a running video.
- Water resistance claimed at 50 m with no gasket detail. Treat any depth rating as unverified and keep it away from water.
- Sellers who market the watch as genuine. In the US, trafficking in counterfeit goods is illegal, and reselling a replica as an original is fraud. Buy it as a replica and say so if you ever sell it.
FAQ
Are 39 mm Portofino replicas close to the original size?
Yes, when the case is built to the 39 mm spec. The risk is not the diameter, it is the thickness and the lug curve. Compare side profiles, not just front-on shots.
Which movement should I pick?
A Miyota 9015 or a Sellita-based clone gives you hacking, hand winding, and a 28,800 vph sweep. The Miyota 8215 is durable and cheap but runs at 21,600 vph and does not hack, which shows in the seconds hand behavior.
How do I check subdial spacing from photos?
Look at the gap between the bottom of the small seconds ring and the rehaut. It should be narrow and even on both sides. A wide or lopsided gap means the dial was not cut for that movement.
Will it pass as the real thing?
No replica survives a loupe or a jeweler's bench. Buy it as a replica, wear it for the look, and do not represent it as genuine.