It is a great idea but will our countreparts, in 30 years time, be saying, "oh, but it has got that non-original, Chinese part in it"? Even if Swatch brought it out as an upgrade, people would still complain that it was not original.
As an example, the Zenith Cal 400 has a cover fitted over the column wheel that stops levers jumping out of the column wheel and makes the chronograph more reliable. This will fit a Cal 3019 and it makes practical sense to fit it at service but collectors still consider it a form of heresy to have it on a 3019. This, of course, is because you can see it if you remove the case back - something people did not do 40 years ago.
Funnily enough, when Zenith first published the service documents for the 3019, they drew the date jumper spring the wrong way round. Whilst it still worked the wrong way round, it caused premature failure of the spring. Although they issued an amendment to the manual, many people did not get this amendment and even after the Cal 400 was released with the original spring, there were still failures so Zenith made a completely different spring that solved this problem. As the spring is on the dial side of the movement, I wonder how many people have 3019s with the new spring but as you can't see it just by removing the case back? (as you can with the column wheel cover) are in blissful ignorance.
I guess this clever mod to the 7750 will be just the same
