The replica Portugieser Automatic 31 is a first-copy version of the IWC Portugieser Automatic, sold under a factory batch code rather than a real IWC reference number. Expect a 40 mm to 42 mm steel case, a silver or blue dial with small seconds at 6 o'clock, and a clone automatic movement instead of IWC's in-house calibre. Confirm the actual diameter, dial layout and movement before paying, because "31" tells you almost nothing on its own.
What does the number 31 refer to?
Replica factories use short codes to track production batches, so "31" is a seller label, not an official reference. Two listings carrying the same number can ship different case sizes, dial colours or movements. Ask for the measured case diameter in millimetres and a photo of the exact watch that will be sent to you.
Which specifications should you confirm before buying?
- Case diameter: the genuine Portugieser Automatic comes in 40 mm and 42 mm versions, and replicas copy both.
- Dial layout: small seconds at 6 o'clock, applied numeral markers, leaf-shaped hands, and a power reserve indicator at 3 o'clock on the 42 mm style.
- Crystal: sapphire with anti-reflective coating is standard on better batches, mineral glass on cheap ones.
- Caseback: exhibition back with a display crystal, or a solid steel back on lower-tier builds.
- Water resistance: usually rated 30 m at best and rarely pressure tested, so keep it away from water.
How do you separate a good first copy from a weak one?
Dial printing decides most of the first impression. Crisp, correctly spaced text, sharp applied indices and clean hand polishing read as quality from arm's length. Judge from macro photos of the real unit, not from the seller's marketing renders.
Case finishing is the second tell. Brushed flanks should be even, polished bevels distinct, and the lugs free of sharp edges. A heavier, well-machined case is a better sign than a light one with fuzzy brushing.
What movement will be inside?
Most batches use a Japanese Miyota 9015 or a Chinese clone with a decorative plate and a rotor engraved to resemble IWC's calibre. Genuine Portugieser Automatics run an in-house Pellaton-wound movement with a multi-day power reserve, and no replica matches that. If a listing claims a seven-day reserve, wind the watch fully, leave it dial up and time how long it runs.
What price tiers exist?
- Entry, roughly $80 to $150: basic clone movement, thin or mineral crystal, simplified dial printing.
- Mid, roughly $180 to $350: Miyota-based movement, sapphire crystal, cleaner dial printing and case brushing.
- Top, roughly $400 and up: closest dial detail, decorated movement, sharper case geometry.
Prices move with seller, batch and currency, so treat these as ranges rather than fixed values.
What should you check when the watch arrives?
- Timekeeping over 24 hours, ideally within plus or minus 20 seconds a day.
- Hand alignment at 12, smooth crown operation, and no wobble in the rotor.
- Dial condition under a light, looking for dust, tilted markers or uneven lume.
- Strap quality, since most sellers ship basic leather that wears out quickly.
Is buying a replica legal?
Counterfeit branded watches infringe trademarks, and customs authorities in the US and EU can seize shipments. Selling a replica as genuine is clearly illegal, while personal import rules vary by country. Check your local rules and treat the purchase as a risk you accept.
Frequently asked questions
Does the replica Portugieser Automatic 31 keep accurate time?
A Miyota-based batch typically runs within 15 to 25 seconds a day, which is reasonable for the price. Cheaper clones drift more and may need regulation by a local watchmaker.
Can a watchmaker service a replica Portugieser?
Many independent watchmakers will service a Miyota or common clone movement, but some refuse replicas outright. Ask first, and expect a service fee close to the price of the watch.
Is the power reserve indicator functional?
On most batches the 3 o'clock indicator is decorative or driven by a simple gear, not a true remaining-power readout. Only top-tier builds sometimes link it to the actual mainspring state.
How do you spot a low-quality batch quickly?
Check the dial text under magnification and the lug finishing. Sloppy printing and soft, rounded edges are the fastest signals of a budget build.