Nickel silver case with rear hinged back plate, white enamel dial with black finished 60 seconds time scale, off set subsidiary dial for elapsed 30 minutes. Dial bears logo of circle within triangle (Herm. Bark, Kiel). Rear hinged back plate has machine engraved eagle and swastika along with "M" designation, serial number "8448". Inside of back plate has machine stamped case number "522371". Further markings (e.g.1567207) to the inside.