Buren 1320

1962- micro rotor, double jewel bearing if 21 or 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. since 1966/67 minor modifications of base plate (cf. Buren 1322)