The thing I take issue with is the false narrative that this technology enabled them to reverse engineer something they already have engineering for.
Fair enough. Please note : the only reason for my continued dialog in this thread is not to do with Omega per se, but rather to do with the fact that whenever anyone uses CT to reverse engineer 70~100 year old mechanical things, and mentions it, it gets panned as 'marketing gobbledygook' by default. I have not mentioned the 321 at all...thats something that you still bring up for some reason.
Here it was used to look into an almost rotted-to-powder 2000 year old mechanical model (much like a watch) to see the inner mechanisms and symbols not able to be seen normally.
Was it required to do the job? No.
Maybe, maybe not. As far as we have been told, Breguet(and not Omega) had swallowed Lemania and were producing 321 movements(and parts?), and where and in what form the IP for old movements exists is not clear, I see no point to speculare here. I do not claim to know the inner workings of the swatch group and their separate entities/politics within/etc etc etc and I dont see the point to speculate on that either. Regardless of that, on the topic of Omega flaunting this technology just for marketing : if you recall they did use this method to recreate the Trilogy watches (the teaser adverts were timelapsed videos moving through the 'slices' of a CT scan, from bottom to top if the watch were laid on a table, of each watch). They also used this to recreate the 105.012-65 case/pushers/caseback(/dial?) used in the Apollo 50th watches and the platnum 321, and soon-to-be-new-moonwatch, and most likely the same for the steel 321 (new Ed White). But they undoubtedly had all the old handdrawn engineering drawings for all these parts from the 50s/60s so by this logic, they must have done this repeatedly on several occasions for several watches unnecessarily 'just for marketing'. I also don't recall anyone complaining about that then.
(Edit: from my own experience: when the engineering team did something worthy of being marketed, it was totally flaunted, but not the other way around i.e. the marketing department would not (nor have the capability to) dictate practices to be used by engineering to do their jobs better and more effictively. YMMV.)
Anyhow. This horse is dead. Back to cars!