I was and still am speculating about this matter myself. I was and still am not making any claims whether it is true or not. I do not know. Based on information passed to me in mid-summer by one of the members the Swiss Family who founded Victorinox, I believe it is true Eta is not presently dealing directly with Invicta and hasn't in some time. However, another friend who is a Swiss trained and practicing watchmaker here in the States also recently informed me that Victorinox is a well known major source for Eta movements for those companies and parties who cannot buy certain movements directly from ETA. This includes the 7750 and other mechanical/automatic movements. However, he also informed me the quality of these movements is not always quite as good as those which come directly from Eta. This has a number of implications which I'd not considered.
Learning of the existance of this indirect outlet has given me some more insight into how the industry works. It seems Eta has a back door through which they can provide Eta movements to those companies who can't buy them at the front door. I should have realized such a practice exists. Eta can, on the surface, adhere to their own policies while still making more profits from their production. This allows them to save face, and also allows them to move production which may not quite measure up to their usual QC/QA standards. It's a win, win for them.
After all, business is business, and the Swiss are among the most cagey and clever business people in the world. It's all about the bucks in the end isn't it. Shoulda figured on this, but then again, I'm just a layman and not an industry insider.