The new Richard Mille RM 037 features the latest automatic caliber CRMA1, which represents an original construction by the Richard Mille movement designers in Les Breuleux, Switzerland. This automatic winding caliber created from skeletonized grade 5 titanium sports an oversize date at 12 o’clock and a function window at 4 o’ clock. Two subtly shaped pushers are located at 4 and 10 o’clock. The pusher at 4 o’clock allows one to select the winding (W), neutral (N) and hand setting (H) functions with a simple push. An aperture located at 4 o’clock shows the function selected. The second pusher, at 10 o’clock, controls date changes, for instance when one is traveling or needs to correct the date for months with 29, 30 and 31 days.
The machine tooling process requires 2 days of adjustment for the bezel, 2 days for the caseband and 2 days for the case back. The empty case requires more than 255 tooling operations and more than 5 hours of glazing and polishing in the final stage. The complex shape of the case is obtained thanks to a 5 axis machine. On each case, the “Richard Mille” engraving on the back and situated on the inside curve requires 45 minutes. The tripartite case is water resistant to 50 meters, ensured by 2 Nitril O-ring seals. The case is assembled with 20 Spline screws in grade 5 titanium and abrasion resistant washers in steel 316L.
Many details form the signature of the RM 037, such as a power reserve of 50 hours, the rotor with variable geometry, a free sprung balance with variable inertia, the extensive use of Spline screws throughout the movement.