Richard Mille, with its give attention to motorsports, has lengthy targeted on extremely advanced chronographs. Beginning with the RM 004, a manually-wound, split-second powered by a Renaud & Papi caliber, these new RM 65-01s are the newest within the lineage. This high-beat, self-winding rattrapante chronograph options Caliber RMAC4, a high-frequency motion with variable inertia, oscillating at 36,000 vibrations per hour (vph)/5 Hz. The RMAC4 within the RM 65-01 is provided by Vaucher and was initially primarily based on the structure and format of the Parmigiani caliber PF361.