Calibre CRMA1 - The first in-house construction by Richard Mille.

The automatic movement CRMA1, standing for Calibre Richard Mille Automatique 1, developed especially for the RM 037, represents the first in-house construction by Richard Mille, following an intensive five-year development journey. The CRMA1 sticks closely to the brand’s identity, making extensive use of skeletonised Grade 5 titanium for both its baseplate and bridges. Beyond the challenge of developing its own calibre, Richard Mille also created an oversized date display positioned at 12 o’clock and its now-iconic function selector at 4 o’clock.