Hi Eric
The basic models have movements manufactured by Vaucher , well respected mnfr. They also do the base for the RM11, i believe a Dubuis Depraz Chrono Complication.
The tourbillon and chronos are done by Renaud and Papi..movement and watch assembly............THE company to deal with when sourcing specialised movements...Rmemeber...Robert Greubel and Stephen Forsey also spent many years at AP RP........there is extensive collaboration between RM and AP RP......they do ALL the Audemars complications. Some of RMs contribution has filtered in to other brands as well....via RP.
When Richard MIlle says he is not a watchmaker....perhaps one should see beyond the obvious. Mr Mille decided to build his watches sourcing the best case and movement manufacturers..............no compromise...Rejection rates on components are very very high........RM is a young company....yet even Mr Stern and other leaders of great watch companies acknowledge RMs contribution to the Industry....in many ways....he has raised the bar.
He has broken the mindset that weight=value.....009.....and titanium models of the 004 and 008.
Doing extensive searches.....i and many other WISs feel the RM004 is THE finest chrono ever designed and built by the genius , Guilio Papi.
Yes , there was , is and will be teething problems...........however..............i recall many Patek 5960p being sent back....and 5980s.
Which watch companies have given us such memorable watches like the RM 004 , 008 , 009(WOW) and RM12 (WOWOWOWWO) which i was fortunate to handle earlier this year.....even Felix Baumgartner from Urwerk asked if he could purchase an RM12.......................if i could live with only one watch for the rest of my life....it would be the 12.
I would love to own a Lange Double Split , Patek 5970 . 5960 ........ AP Perpetual...............i have handled some of these dream pieces..........none as natural and comfy on the wrist as an RM.
Best of luck in your journey .
Faiyaz