Smart timepiece comprising common grounding device for timepiece movement

The present invention relates to a smart watch comprising: a case having a center piece; the invention relates to a smart watch comprising a central piece, a timepiece movement housed in an internal space delimited by said central piece, the timepiece movement comprising a processing unit and a communication module electrically connected to electrical connectors comprised in the timepiece movement, the smart watch being characterized in that it comprises a common grounding means formed by an electrically conductive elastic ring, the conductive elastic ring comprises: an annular body having a central axis; a fastening tab carried by the annular body and cooperating with the central piece to form a bayonet locking system by rotation of the conductive elastic ring relative to the central piece about the central axis between an insertion position and a locking position, and the conductive elastic ring includes a conductive lug, the conductive lug is configured to be in electrical contact with an electrical conduc