Abstract: An operative mechanism for use in combination with a rear view mirror assembly and which comprises: sealing housing parts forming an enclosure for component parts that are preassembled and include, a small reversible electric motor, screw threaded shaft and travel nut arrangement, together with a follower arm and pivot pin assembly received in operative engagement with each other within receptive and functional housing walls to provide a small, compact device for pivotal control and viewing adjustment of the rear view mirror.