It possibly could for 'eternity' but remember this is the rep (fake goods) industry and therefore quality control is no where near that of Seiko or swatch etc, etc. Conditions in which these watches are assembled are probably nothing like the legitimate low cost brands even. If the rep makers produce low quality or decide not to honour a warranty, or even give one, there is little we can do apart from complain on forums like this. I think complaining to Trading Standards (or the equivalent in your country) will not get you very far! Ok they will possibly lose some customers but I suspect the rep industry isn't built on sales to these forums alone. If everyone votes with their wallets and stop buying a particular 'brand' then change the factory name, improve quality a bit and hey presto we're all signing the praises of a new factory (not saying this has happened but a simple thing to do)!
Why do these factories produce replicas and not create their own brand, because they can charge much more for a rep of a high end brand. Look at Parnis, take the Rolex/Omega/IWC off the dial and it costs 1/2 to 1/3 the cost of a rep.
Ok so this doesn't mean they should produce low quality and charge high prices for them but while people keep buying them why not, I supect they are only interested in parting us from our cash. The cheaper they can make them and keep selling them the more money they can make. Maybe a cynical a view I don't know.
Bottom line is in this game, rightly or wrongly, don't try and compare a commercial brand to a replica maker the ethics behind all of this are a million miles apart.
Except, having been a Parnis owner because of the hype on the Gen forum, I can tell you right now they aren't anywhere near as good as the reps on here. The movements are universally cheaper, the cases not as machined, and the dials often downright ugly. For example my Parnis BP was a 1mm to big in the case and the dial had mislaid, ugly, uneven markers at 4,5,6 and 9. Meanwhile my Batman GMT, while it had a nice bracelet, didn't have glidelock and the movement often lost time. Not to mention on the dial you could tell the hands and markers are cheap gilt.
While Parnis are for sure unbranded reps, they're being sold at 90-110 bucks shipping in. Which indicates to me they're probably 20 to 40 bucks at wholesale.
If we look at watchstation the cost they're paying wholesale is at least 100 bucks or more for most of th super Rep models. To be honest I suspect that's what your lower end Hamilton and the like costs, forget the Low end Seiko
Not slugging cheap watches, the Vostok Komandirskie us the best mechanical watch in the market under $100 but it doesn't stop the fact that having owned reps and Gen knockoffs, the reps are better
Moreover I deeply suspect many of the Rep parts factories provide most of the components for "Swiss" brands like Steinhart and Tissot, who are spending their real bucks on assembly and QC