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This mainspring is used by the following movements:
Movement | Description | Ligne |
---|---|---|
Wittnauer HT4420 | WITTNA CASE REFERENCE |
This mainspring is similar to that used by the following movements. When values differ the exact value is shown brackets for reference:
Movement | Mainspring | GR Reference # |
---|---|---|
Osco 60 | 1.40 x 0.100 (0.075) x 220 (280) x 7.5 mm | GR3660 |
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