| 摘要 |
<p>A dial comprising a glass plate or a semi-precious stone (34) and a metal lining (36) is produced by covering the plate (34) with a thin opaque metal layer (35) by vacuum evaporation. Gold time symbols can be formed first, and then the assembly as a whole be covered with a second silver layer. The plate (34) is subsequently incorporated in the matrix (29) for adhesive bonding. The faces of the mould cavity are covered with a copper layer (38) and the matrix is placed in a galvanic bath, of which a metal, such as nickel or copper, is deposited in the cavity, and forms the body (36). This is machined along the surfaces (37) and (38). The matrix is removed by dissolving and conventional feet can be welded to the back of the body (36). <IMAGE></p> |
