The Unitas 327 watch movement, produced from 1916-1927, encompasses an open face calibre, specifically model 5. Noteworthy features of this movement include a bimetallic screw balance and a Breguet hairspring. It stands out for its ingenuity through the integration of one simple part that replaces the setting-lever spring, yoke, and yoke spring. Functionality-wise, it is designed to facilitate stem winding and setting, and includes a sub-second hand. As a product of the United States, the Unitas 327 serves as a representation of American craftsmanship during the 1916-1927 period.