A bottle made of a plastic material, including a body surmounted by a neck including a dispensing opening. The neck and the body are made in two separate parts which are assembled together in order to connect the interior of the body to the dispensing opening, the neck includes an axial sealing skirt which is mounted on an axial bearing surface formed on the upper portion of the body. The bottle further includes a shrunk-on collar, the lower portion of which is arranged to axially cover at least the connection area between the neck and the body. The connection of the neck to the body is produced by combining a tight fitting of the exterior surface of the sealing skirt over the interior surface of the bearing surface, and radial clamping of the lower portion of the shrunk-on ring onto the exterior surface of the bearing surface.