MSB
248
Parmigiani led the way...
with the early development of the 1.96 micro rotor design , which has been the basis of many of their calibers.
The original L.U.C movement was developed with Michel Parmigiani and shares some design aspects, including its micro rotor and bridge design, with his line of movements for Vaucher Manufacture and Parmigiani Fleurier, located in the same town.