18K White Gold
Limited edition of 28 watches


SIDERALIS is structured around two especially extraordinary tourbillons:

Both of these tourbillons are oversized, with cages measuring 14. 9 mm - half as big again as the average. This is the largest assembly of two tourbillons ever to have existed.

The tourbillons rotate in opposite directions, driving the Sideralis complication: two dises, one atop the other, which also rotate in opposite directions, orchestrating the ballet of the stars on the time dial, and revealing a succession of tiny hand-painted vignettes. The dises depict the planet Mars, the Moon, and Mercury, one after the other.

Technical Data

Caliber LM46

Exclusive and patented Double tourbillon with animated sideral mechanism.

Manual, Double tourbillon
21600 VPH (3 Hz)
42 hours
Jewels: 36
47.4 mm
Hours, Minutes, Automaton
Hours, Minutes, Automaton
30 meters
24 mm
Folding clasp
18K White Gold
Swiss made