Portugieser Automatic 31 Replica Compared to the Real IWC
Short version first: if you want one of these, the 42mm build with the decorated 52010-style movement is the one to pick. Everything else in the category gives up something on the dial, the case finish, or both. Here is what separates the good ones from the rest, plus two cheaper paths and one I would walk past.
Portugieser Automatic 31 Replica for Sale: Buying Guide and Risk Check
What the "31" in the listing actually means
It is not a case size. IWC's Portugieser Automatic sits in the IW5007 family at 42.3mm, and the calibre 52010 inside it carries 31 jewels. Most listings that say "Portugieser Automatic 31" are pointing at that jewel count, or at a seller's own stock code. When you compare two of those listings, check the case size and the sub-dial layout before anything else. A 40mm case with small seconds at 6 is a different reference, and the replica of it is a different build with different flaws.
Portugieser Automatic 31 Replica: A Comprehensive Buying Guide
The pick: 42.3mm, sub-seconds at 9, reserve at 3
This is the layout most people picture when they hear the name, and it is where the better factories put their effort. Things I check before deciding:
- Case brushing that runs in one straight direction. Loose, wavy brushing is the first tell.
- A power reserve hand that moves when you wind the crown. Plenty of cheap builds freeze it at full.
- Applied numerals with polished edges. Flat printed numerals kill the whole look.
- Rotor engraving that reads clean under a loupe.
- A strap with real grain rather than plastic with a shine on it.
The genuine watch runs seven days on a full wind through IWC's Pellaton winding system. No replica at any price copies that mechanism. What the good ones copy is the dial layout, the case proportions, and the crown feel.
The two fallback options
Drop one tier and you get a mid-range automatic that keeps decent time but adds thickness, because the small-seconds hand is driven by a module stacked on top of the base movement. Drop two tiers and you get a quartz or a fake automatic with a dead power reserve indicator. Neither is a disaster on a wrist at arm's length. Both collapse the moment someone hands you a loupe.
What I would skip
Anything sold as "1:1 Swiss" at two or three times the going rate. That price jump rarely buys a better dial, it buys a nicer box and a story. Also skip any listing that will not name the movement. If the seller dodges the question, that answer is your answer.
Before you send money
Ask for a short video of the reserve hand moving under winding, a straight-on dial photo, and a case back photo. Compare those three against the reference photos and decide from there.
One more point, and it is not a sales line. Counterfeit watches are illegal to sell in most countries, and a parcel can be seized and destroyed at customs. No watchmaker authorised by the brand will service one, the brand will not touch it, and resale value is close to zero. In the US, trafficking in counterfeit goods carries criminal penalties. Go in knowing that, not finding out later.