Hi Watchmark!
Well the Chopard movement in it's current configuration would not be correct for the HBB, but if the movement maker was contacted, maybe they could change/create their 7750 for a new HBB?
The subdial layout would need changing from 6/9/12 to 3/6/9, and it would also need a Hublot decorated bridge and rotor. As I stated before, if it could be done it would be the best 7750 movement in any hublot to date! As it has the high beat with a working regulator!
All the other HBB's are either high beat without a regulator, or low beat with a non functional regulator.....
Cheers!