I think using the movement references is important. We are not just talking about Swatch Groups multitude of branded watches. We are potentially talking about any ETA movement from any branded watch, including micro-brands. Having to go to an accredited watchmaker starts to set up that £400-£500 watch bought a few years ago for a very expensive service.
Now, when people are saying they don't want to buy inhouse because they are tied to the manufacturer, if Swatch has its way there won't be much difference in the cost of the service between their inhouse movement watches or any brand using an ETA movement.