The Unitas 202 watch movement, which was in use around 1915, features a hunter calibre, a bimetallic screw balance with 2 adjustment screws, and a Breguet hairspring. It utilizes a stem mechanism without a setting-lever spring, with a latch under the setting lever. Notably, the left-handed setting-lever screw is indicated by a scarcely visible arrow. The movement encompasses functions such as stem winding and setting, as well as a sub-second display.