Manufacturing method for spectacles with the use of first and second portions of profiled wire and a pattern having the same form and a size slightly greater than that of the lenses. The first and second wire portions are submitted in succession to different operative phases, in which they are adapted around the pattern so as to form frame half-portions which are shaped around the pattern with the outline of the lenses. The frame half-portions are joined to the respective bars through hinges which are attached to the corresponding frame half-portions, The frame half-portions are submitted, together with the bars to possible chemical treatments, the frame half-portions are applied to the lenses and the bars equipped with the respective terminal elements. Afterwards the nose-piece element is applied on to the assembly frame half-portions by tightening.