The Minerva 16 watch movement, produced in 1940 with approximately 1200 units produced, is an open face calibre with a bimetallic screw balance featuring four adjustment screws. It utilizes a Breguet hairspring and incorporates patented big bearings for the crown- and ratchet wheel. The movement includes a barrel with Geneva stopwork and shares similarities with the IWC 52 19'''H5 model. Additionally, the Minerva 16 movement includes an indirect sweep second and offers stem wind and set functions. This particular movement was in use between the years 1888 and 1940.