Short answer
A fake Portugieser Hand-Wound 37 is a replica of IWC's compact hand-wound Portugieser dress watch. Most pieces sold under that name measure 37 mm and look close to the original on a wrist, but few carry a genuine hand-wound mechanical movement. Check case diameter, movement type, crown action, dial printing, and weight before paying. Importing counterfeit watches is illegal in the United States, and seized shipments are destroyed with no refund.
Before you start
- A confirmed reference number and the factory specs that go with it
- A jeweler's loupe or a phone macro lens
- A digital scale accurate to 1 gram
- A written return agreement from the seller
What the genuine model is
The Portugieser family uses a clean dial, a thin bezel, and applied numerals. A 37 mm hand-wound version sits at the small end of that range, aimed at slimmer wrists. Confirm the exact reference number, case thickness, and caliber against the brand's own catalog before comparing anything, because the line has changed several times and sellers reuse the name loosely.
Typical genuine traits to compare against:
- Case around 37 mm, polished steel, slim tapering lugs
- Hand-wound mechanical movement with small seconds on most references
- Slightly domed sapphire crystal with antireflective coating
- Silver-plated or white dial, applied numerals, leaf-shaped hands
- Alligator-pattern leather strap with a pin or folding buckle
Replica tiers you will see
Tier 1: fashion copies
Quartz movement, mineral glass, glued-on numerals, printed caseback. Wholesale cost sits in the low tens of dollars. The seconds hand ticks instead of sweeping, and the watch never winds.
Tier 2: mid-grade copies
Low-grade automatic movement, sapphire crystal, better dial print. The case is often 1 to 2 mm too thick because the automatic rotor needs clearance. Hand-wound operation is simulated, not real.
Tier 3: high-end claims
Some sellers use the term super clone. It is marketing language, not a standard. A small number of these do carry a decorated Chinese hand-wound caliber with a layout that mimics the original. Expect uneven quality, no service network, and no parts supply.
Evaluation checklist
- Ask the seller for the exact case diameter in millimeters and compare it to the reference you confirmed earlier.
- Ask which movement is inside and request a photo of the movement with the caseback off.
- Wind the crown. A true hand-wound movement gives light resistance and a repeating click. A quartz copy gives nothing.
- Examine the dial print with a loupe for bleeding edges, uneven spacing, and misspelled text.
- Weigh the watch on a digital scale. A light piece points to a thin case or an alloy body.
- Request a close photo of the caseback engraving and compare font, depth, and reference number.
- Get the return terms in writing before you send payment.
Legal reality
Counterfeit watches infringe trademarks. U.S. Customs and Border Protection can seize and destroy a shipment, and the buyer loses the money with no recourse. Selling a replica as genuine is fraud. Treat any listing that promises customs safety as a warning sign rather than a service.
Frequently asked
Do replicas use real hand-wound movements?
Rarely. Most use quartz or low-grade automatic movements. A small share use Chinese hand-wound calibers with decorated plates.
Why does 37 mm matter?
It fits wrists under roughly 17 cm better than the 40 mm and 42 mm Portugieser cases, which is why the size drives demand in this segment.