Glazed device intended to be mounted on an inner door shell to form a motor vehicle door or on a bodywork element, comprising a glazed fixed part and a mobile glazed panel that can slide relative to the fixed part along a substantially vertical axis, and can selectively at least partially cover or uncover an opening in the fixed part, the opening having two side edges, an upper edge and a lower edge, the mobile panel being guided along rails supported by the fixed part,
- wherein the rails are secured to the glazed fixed part along the side edges by a bead of glue,
- and wherein a frame, extending at least on the side edges and the upper edge of said opening, the frame having two side frame edges and an upper frame is secured to the rails for the side frame edges and glued to the fixed part by means of the bead of glue, for the upper edge.