Timepiece with localised illumination

A timepiece comprising:

• at least one timepiece external element comprising a visible face formed by a transparent or translucent body comprising an autonomous lighting device, said timepiece external element being formed by an assembly of at least three layers joined together by a joining element to form a monolithic assembly, the layers being stacked to overlap in an axial direction of the timepiece, each of the layers comprising one or more of the following functional elements of said lighting device:
• at least one light source capable of generating light in the visible face of the timepiece external element;
• a self-contained power supply unit;
• and
• a control unit configured to manage the operation of the light source;
• said at least one light source being configured to produce localised light on a point or quasi-point area of the visible face of the timepiece external element, so as to produce localised illumination on said timepiece external element.