CALIBRE
The term Calibre originally referred to the architecture of a movement: the layout of the bridges on the main plate, the arrangement of the train (wheel train) and the overall dimensions of the assembly.
By extension, the word came to designate a specific movement model, identified by a reference unique to each manufacture. The Calibre is characterized in particular by its shape, its diameter expressed in lines or millimeters, its height, its frequency, its power reserve and any complications it may have.
We speak of a shaped calibre when it is not round, and of a manufacture calibre when it is designed and produced in-house.
The choice or development of a calibre determines the entire construction of the timepiece, as it dictates the size, performance and technical character of the watch. The study of a new calibre brings together engineers and watchmakers around the main plate, the bridges and the regulator, in the pursuit of a balance between reliability, precision, slimness and aesthetics.
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