Dugena 1320 (Buren 1320)

1962-1967 micro rotor, double jewel bearing if 30 jewels double excenter regulator for curb pins and stud carrier selfwinding gear with direction switching by a pinion floating between two huge jewels (Fig.5) indirectly driven minute and second allow a low profile Details in Fig.4: The coupling between excentric cannon pinion A and free-running center pinion B is made free from play by pressing the hour wheel C against both. For this purpose the hour wheel usually runs in an oval hole and is pressed by a spring. Here the spring is integrated into wheel C. This means a precise bearing and requires less heigth.