An electric power-generating device (1) comprising a movable portion forming a magnetic circuit fitted with a core (5) and branches (11, 12, 13, 14) coupled magnetically to the said core, a fixed portion provided with a permanent magnet (31, 32, 33, 34), a mechanism for rotating the movable portion about an axis of rotation (20) supporting the said core, and an electric coil (21) wound around the said core in order to gather the electric power obtained when the said movable portion rotates, the said generating device comprising priming and driving means (51, 52) coupled to control means (71, 72) in order to establish a priming of the said mechanism and interacting with the said movable portion in order to drive it by releasing a priming power at the end of travel of the said control means.A remote control provided with the generating device.