The Dugena 716 watch movement, also known as the Emile Judith 19''', is a mechanical movement that was first produced in 1926. It is available in both open-face and hunter calibre versions. The movement features a bimetallic screw balance with four adjustment screws and a Breguet hairspring. It offers stem winding and setting capabilities, as well as a sub-second function. The Dugena 716 movement has been utilized in watches from 1926 onwards.