Device for fixing at least one striking gong in timepiece and method of fixing at least one striking gongs in a timepiece

Process of mounting and fastening of at least one gong of a watch that comprises the following operations:

• solidly attaching the at least one gong to a corresponding heel made of a material exhibiting a speed of sound at least as great as a material of which the at least one gong is made;
• if there is more than one said gong to the striking mechanism, fastening in a specific working position of the heels of said gongs one on top of one another;
• positioning the at least one gong and the heels on a bottom plate as an assembly and temporarily fastening said assembly to a bottom plate of a watch movement;
• tuning or setting the at least one gong;
• separating the assembly of the at least one gong and the heels from the bottom plate of the movement;
• fastening a dial and hands to the watch movement;
• fastening a crystal support underneath the watch crystal while the material of the support exhibits a speed of sound equal to or higher than a speed of sound of the material of which the heels of the at least one gong are made;
• placing the crystal of the watch case onto the bezel and middle of the watch case, in a position such that the crystal support is aligned above the heels of the at least one gong;
• moving the assembly of the at least one gong and their heels toward the crystal, in such a way that the assembly, always in guided fashion, lifts away from the bottom plate and comes to rest against the crystal support, and to be positioned there in its definitive working position;
• fastening the assembly of the at least one gong and their heels on the crystal support;
• and
• fitting and fastening the back of the watch case onto a middle of the watch.