The only manufacturers of adjustable wrenches in Europe are Irega and Bahco, both made in Spain.
Whatever brand of wrench you buy, if it’s European made, it will come out of one or other of those factories.
Whether the manufacturers offer different grades of tool according to the client‘s specification is open to debate, but I believe they do. I have one Stahlwille adjustable, and it’s a decent thing. Obviously made by Irega in their Zaldibar factory, but very little slop and nicely finished.
If you pick another brand, beware that some rebrand Chinese made wrenches, and are not too transparent about this. Buyer beware!
The only other real alternative is to opt for Japanese made. I’ve seen very nice adjustables by “Top”, but best of the bunch has probably got to be Nepros, shown below.