Micro motor for a timepiece

Claim 1

In a timepiece having a timepiece movement having an outwardly curved frame portion: a micro motor comprising a curved magnetic core mounted on the timepiece movement frame portion at the periphery thereof and being curved inwardly in a direction opposite to the outward curvature of said frame portion to define a space between the outwardly curved frame portion and inwardly curved magnetic core, a coil winding wound on said curved magnetic core, a stator comprised of stator pieces each connected at one end to a respective end portion of said curved magnetic core to define therewith a magnetic flux path and having their other ends spaced apart and configured so as to form an opening therebetween, said stator pieces having curved portions extending at least partly along the curvature of said curved magnetic core on the side opposite that which defines said space, and a rotor rotatably disposed in said opening; and at least one timepiece component mounted on said timepiece movement within said space thereby conserving space and providing a compact construction.