Timepiece comprising a vibration-amplifying device

A timepiece comprising a case containing a movement, at least one device for generating vibrations intended to produce at least one sound, at least one device for amplifying the vibrations generated by said vibration-generating device, said device for amplifying the vibrations comprising a lever linked to a support by an articulation about a single axis of rotation, said lever being arranged to be actuated by a transmission member cooperating with the vibration-generating device to transmit the vibrations to said lever in order to make said lever pivot with respect to the support according to a vibration movement around the axis of rotation, wherein the device for amplifying the vibrations comprises at least one plate arranged to cooperate with the lever in order to be displaced according to the vibration movement, and wherein said plate is housed in the case so as to form a free space on a periphery of said plate over at least 70% of a perimeter of said plate.