The fake Portofino Small Seconds 37 copies a 37mm dress watch formula: slim case, small seconds at 6 o'clock, uncluttered dial, leather strap. What separates a $90 version from a $400 one is not the logo on the dial. It is the case profile, the subdial positioning, and the movement inside. In the first copy market, those three things decide whether the watch looks convincing on the wrist or quits on you in a year.
Quick answer
A decent fake Portofino Small Seconds 37 should measure 37mm across without the crown, sit around 9 to 10mm thick, and drop the small seconds subdial dead center at 6. Anything wider or chunkier reads as a different watch, especially on a small wrist. Movement comes next: a decorated automatic with a real sub-seconds gear train beats a quartz build or a stripped movement with a glued subdial hand every time. And ignore the box and papers. On replicas they are props, and paying a premium for them is how buyers get overcharged.
What the 37mm layout should look like
- Case: roughly 37mm across, thin lugs, polished bezel, brushed flanks on most references.
- Dial: Roman numerals or applied batons, slim leaf hands, a small seconds ring at 6 with its own hand.
- Subdial: genuinely recessed, with a printed track that lines up with the hand pivot.
- Crystal: slightly domed sapphire or sapphire-coated mineral, with an anti-reflective tint visible at an angle.
- Crown: small and flush enough that it does not dig into your wrist.
- Strap: 18mm or 20mm alligator-grain leather, tapering toward a signed pin buckle.
Quality tiers you will run into
Entry tier
Quartz or a basic automatic, often 38 to 40mm, thick case, flat dial printing. Fine as a costume piece. Wrong as a watch.
Mid tier
Correct 37mm footprint, Miyota or Seagull automatic, decent dial finishing. Most buyers should stop here and compare photos closely before paying more.
Top tier
Cloned or heavily modified automatic with a working small seconds at 6, sapphire with real AR coating, hand-finished case edges. Prices climb fast, and so does dealer risk, so insist on photos of the actual unit, not stock images.
Movement and the small seconds trap
The subdial is where fakes slip. On cheap builds the seconds hand is driven off a friction wheel, so it stutters, sticks, or stops when the watch is low on power. Better builds use a dedicated sub-seconds pinion, and the hand sweeps at 21,600 or 28,800 vph in a smooth arc. Ask the seller for a short video with the subdial in frame. A refusal tells you plenty.
Legal and practical realities
In the U.S., importing and selling counterfeit goods is illegal, and Customs and Border Protection seizes shipments that carry faked trademarks. Personal-use purchases exist in a gray zone that shifts by state and by how the package is declared. Beyond the law, there is no warranty, no service network, and no resale value. Treat a replica as a wearable, not an investment, and never let it pass as genuine. That point matters more than any spec above.
Sizing notes for a 37
A 37mm dress watch wears bigger than the number suggests because the bezel is thin and the dial is mostly open space. On a 6.5-inch wrist it fills the flat of the arm almost edge to edge. On a 7.5-inch wrist it reads small and formal. If you have never worn a 37, pick up an inexpensive 37mm quartz first. It is a cheap way to learn whether the size suits you before you spend replica money.