Glazed device intended to be mounted on an inner door shell to form a vehicle door or on a bodywork element, comprising a glazed fixed part and a mobile glazed panel that can slide relative to the glazed fixed part along a substantially vertical axis, and can selectively at least partially cover or uncover an opening in the glazed fixed part, the mobile glazed panel being guided along rails supported by the glazed fixed part,
- wherein the mobile glazed panel supports an overmoulding, which is obtained by encapsulation, covering a rim of the mobile glazed panel and extends over at least one edge of a surface of the mobile glazed panel oriented towards the inside of the vehicle, and of which a lower portion extends on a lower edge of the mobile glazed panel and has at least one stop capable of cooperating with at least one of a frame, a central crosspiece or an attachment part on one of the rails supported by the glazed fixed part,
- the at least one stop ensuring that movement of the mobile glazed panel is limited relative to the fixed part in two directions substantially perpendicular to the substantially vertical axis, at least while said mobile panel is mounted on the glazed fixed part.