| 摘要 |
<p>The bottom plate for a timepiece movement has a transparent or translucent first, outer part (1) that has a central opening (1.2) and at least one cutout that allows an element of a movement to pass, and also a second, central part (2) designed to carry all the members, elements, bridges, gear-trains and mobiles of a timepiece movement made of an opaque material. At least one part of the outer perimeter (2.1) of the second, central part (2) has a shape and dimensions that correspond to the shape and the dimensions of the inner perimeter (1.3) of the central opening (1.2) in the first, outer part (1). The first, outer part (1) and the second, central part (2) form a one-piece assembly.</p> |
