摘要 |
A watch including a mechanical movement with a display device including a light energy source and a slender, elastic, mobile component that is deformable during operation, or a balance spring, at least partially transparent, which transmits and diffuses light that varies with stress in the elastic and deformable portion. The light source is active or passive and injects light into one portion of the mobile component which conveys and diffuses light over at least one portion of the mobile component, or throughout the entire mobile component, to make it visible in the dark. |