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- Unitas Cal. 6380 - Balance cock for stud holder, flat hairspring 121

| Brand | Unitas |
|---|---|
| Calibre | Unitas 6380 |
| International reference | 121 |
| State | Never used |
| Year of production | 1970 |
| Caliber diameter | 29.4mm |
| Caliber height | 4.6mm |
| Frequency | 21'600 A/h |
| Power reserve | 47h |
| Ruby | 17 |