The Unitas 327 watch movement, produced from 1881 to 1895 with a total of 150,000 units, features a hunter calibre, specifically the model 3. It is equipped with a bimetallic screw balance and a ratchet located between the plates, accompanied by a crown mechanism consisting of a rocker bar. A distinctive feature of this movement is its ability to prevent the hands from moving while transitioning between setting and winding, effectively resolving a common issue with rocker clutches. The movement incorporates the functions of stem wind and lever set, as well as a sub second hand.