Correct me if I'm wrong but wouldn't the new clone movement from V6 fit this model?
Actually the only new Unico rep that looks quite decent is the "UNICO FERRARI" Models by V6F. It's NOT a 'clone movement 'but a 7750 movement with some extra moving gears and decorated plates to look like the Unico movement. When you say "fit this model" there are two entirely different watches as the links on the "Big bang UNICO Integral" can't be swapped as it's a 42mm and doesn't have the usual quick release mechanism as most Unico big bangs. Yes there is a 45mm gen bracelet with quick release that will fit almost all gen 45mm models BUT that hasn't been repped yet either.
If you look at the gen pics in link you will see the OLD BIG BANG 2015 bracelet with the quick release mechanism NOT THE SAME WATCH/bracelet as was just a comparison. Same Hublot Unico movement but different watches so not compatible.
https://www.ablogtowatch.com/hublot-big-bang-integral/
IN SUMMARY :
*The Big Bang Integral is a whole new model on it's own in 3 variations (TITANIUM/GOLD/CERAMIC) in 42mm (NO WORD ABOUT IT BEING REPPED)
*The Integrated bracelet for all 45mm's including V6F UNICO FERRARI with quick release (NOT REPPED YET)