First spotted by eagle eyed ei8htohms of ThePurists.com, he suggested this movement "bears an incredibly strong resemblance to the Piguet 1185."
This was never really answered or challenged. So.... in the absence of any further discussion on the movement, inevitably I've gone wandering myself (I prefer that term to surfing - it seems more applicable to the way I 'search' the Internet...) and I have to agree with ei8htohms.
Pictures can be deceptive, but here's the new JLC Calibre 752
And here is a FP 1185.
JLC has an undoubted historical pedigree in chronographs including, of course, the recently developed Calibre 829. It’s precisely because of this grand history that once everybody understood a new chronograph was coming out of JLC, most were on the edge of their seats to see what it would be like. This makes the mysterious likeness of FP1185 to their latest chronograph simultaneously fascinating and puzzling. One’s immediate reaction is to sink to the obvious and disagreeable conclusion, i.e. investing in a new chrono is too expensive, so JLC choose a good base calibre/parts-bin-base to save money and then sufficiently technically upgrade and choose feature content to give brand differentiation, add insuperable JLC prowess and level of finish, et voila Cal 75x.
I remember a similar question arising over Omega 33xx. But IMO 33xx simply doesn’t as closely resemble FP 1185 as much as JLC Cal 75x seems to! In addition, if memory serves me right, Omega even announced that it was going to be a co-development with F Piguet. So nothing was hidden from the outset and nobody was under any illusions that it incorporated many of the features that FP 1185 possessed but it was at least to be Omega exclusive.
With JLC’s brand integrity underpinned by its commitment to in-house manufacture, I would expect they would not risk undermining this philosophy by using even one part of someone else’s. So what is going on here, and in light of the situation where taken at face value the calibres look next to identical, why create a situation where this damaging question will arise rather than tackling it at the outset? JLC were a wee bit careless to think people (least of all Purists) were not going to notice.
If it turns out to be the case that it is an (extensively) adapted base FP1185, incorporating all the Autotractor features (except notably for a true balance bridge (sic)), adding another winding barrel and semi-instant minute change, these are not trivial steps and of course the movement is still phenomenal. BUT, then the next step would be to have to re-enter the well worn debate of “when is a modified base calibre a new movement in its own right” for Cal 75x and I fear, it might become an enduring blot on the manufacture status of JLC. In fact, I think this may well turn into brand error of the century for them. I hope not.
Watch this space as the story will unfold.
In the meantime read a view on why Chuck Maddox thinks the Omega 33xx isn't a FP 1185 despite appearing so