The utility model relates to a timepiece (1), which comprises at least one timepiece external element (2a, 2b), the at least one timepiece external element comprises a
visible surface (20a), the
visible surface is formed by at least a first opaque part and at least a second transparent or semitransparent part, the at least one timepiece external element (2a, 2b) comprises an autonomous lighting device (3), and the at least one timepiece external element (2a, 2b) is arranged on the transparent or semitransparent part of the transparent or semitransparent part of the transparent or semitransparent part of the transparent or semitransparent part of the transparent or semitransparent part of the transparent or semitransparent part of the transparent or semitransparent part. The autonomous lighting device comprises the following functional elements:-at least one
light source (4) capable of generating light (28) in a visible face (20a) of the timepiece outer element (2a, 2b); -an autonomous
power supply unit (21); and-a
control unit (7) configured to manage the operation of the
light source (4); the at least one timepiece outer element (2a, 2b) is formed from an
assembly (9a, 9b) of a plurality of stacked
layers (10, 11, 12, 13, 14) connected together and each comprising one or more functional elements of the autonomous lighting device (3).