A story spanning three generations, from 1871 to 1945. When Gustav Wengler, a farmer’s son, returns from the Franco-German war in 1871, he goes to work for a precision mechanics and optical company, where he soon becomes a master craftsman. Wengler loyally promises the owner on his deathbed that his sons and grandsons will also stand by the company.
| Directing | Rainer Simon | Director |
| Editing | Helga Gentz | Editor |
| Crew | Roland Dressel | Cinematography |
| Writing | Helmut Bez | Writer |
| Writing | Rainer Simon | Writer |
| Sound | Reiner Bredemeyer | Music |