No not saying it is but the spring itself for a gen will be of better quality parts and hold more tension Im sure the parts will fit fine and can be tuned as such I wasnt quesitoning that but by added a more powerful component into a movement that has lesser QC on the components such as the grades of materials used or the overall finish it could create more load on said items.
I would like to see under a macro scope the componets side by side for fit and finish on the gears more than anything else the gen will be ot a standard and the rep will still be very close but not always the same quality finish so as some point will wear quicker than a gen spec or gen part. Im saying they are both very good but Snap-on sell tools and so does Amazon but the quality is worlds apart, both do the same job but one will do it for much longer due to the quality of the ingredients so to speak. There will always be brand markup and hype on both but I bet if you got materials expert to anaylse both set of components with out seeing the branding the gen item will com out on top due the to machining, as the chinese are making a copy but to a price where as roelx is not. As they will easily get their money back.
From a fit for purpose and accuracy side of things there is no real difference and it could well be that the quality and finish of the gen stuff isnt actually needed in order to guarantee its life span. Rolex would argue that their models are still going 50 years on with little in terms of replacement parts.
I think yes swapping parts on them as they fail is a good plan like you would on a gen, its debateable that if you replaced the tell tale items from a visual perspective and then sent it to a service centre whether they would notice, if nothing was broken aside from just taking apart and cleaning and then putting back I suspect it would go un checked, how close the jewels are and the sizes might be different I guess but only a well versed service tech would notice any differences if there were any.
I had a much older Sub 11610 gen and that time it kept even after a service was not as good as my gen Navitimer or Chronomat and I had a rep sub that kept marginally better time. So that can only really be component wear as the gen was much oder in terms of material wear than the rep as its was technically almost new but imitating the 11610.
As good as rep are they will still ways use cheaper grade components to keep the costs down, i doubt in the very basic terms the individual componets cost to make a rolex movement could be done so for less thna the price of a whole rep though.
However quite why it needs to be so well engineered is another question, but that is similar to a Spanish built Seat and a german built Audi they are both cars and both very similar chasis and engines but the audi makes use of some better quality materials than the Seat but at the same times elevates the price way above the cost of those components in brand and hype.
Tudor is the cheaper arm of Rolex and has been for a long time and now they are much more of a standalone brand in their own right but still rolex style quality, but never outsell Rolex, but its interesting that they can sell a very similar line up for wya less take the Pepsi GMT, Rolex brand new £7800 at launch and now £9550 (still unobtanium and rumours of it being discontinued) yet the Tudor Black Bay GMT £3780 and is still a COSC rated watch. This gives us an idea of how much extra bubble there is on the Brand, give or take a few quid maybe for some more precious metals maybe.
If Tudor can still make a healthy profit and sell a GMT model for less than half the cost of a Rolex BLRO and bith have equal movement complications, it shows exactly how much the brand name and prestigue is worth to the buyer.
I mean it does look a lot better for sure, Im surprised that the GMT movement from a Tudor hasnt been uses to franken as you would then have all the benefits of the quality parts sat inside a rep case.
Never really seen if using a Tudor gen movement could have Rolex branded parts swapped over into it in the same way as the rep super clones as this would then be a super duper clone.
