The Geneva Sport Watch 50 watch movement is a manual wind mechanical movement that offers a sweep second function. It features a bimetallic screw balance and utilizes a Breguet hairspring. Notably, this movement is identical to the Gruen 835SS and Rolex 210 movements, all of which were manufactured by Aegler. The Geneva Sport Watch 50 movement was introduced in 1925 and has been utilized in watches since then.