Mechanical, hand-wound. 21'600 vibrations per hour (3 Hz). Double barrels. Two independent gear trains. Two constant-force remontoires. Natural escapement with central impulses. Power reserve: At least 38 hours
To achieve the precision of his Caliber 9012, Bernhard Lederer installed these two escapement wheels at the end
of two separate gear trains, each with its own barrel and its own 10-second constant force remontoire. In finely
evening out the driving force, optimizing the geometry of the escapement parts, paring down the weight of these
energy-intensive components, and reducing the internal friction of the escapement to a minimum, Bernhard
Lederer has achieved an extraordinary degree of watchmaking perfection. It is a work deeply rooted in respect
for the noblest traditions of watchmaking, with a level of finishing to match.