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- Zenith Cal. 1730 - Racket sprocket (with driven tenon) 306
Brand | Zenith |
---|---|
Calibre | Zenith 1730 |
International reference | 306 |
State | Never used |
Year of production | Circa 1967 |
Caliber diameter | 17.5 mm |
Caliber height | 2.7 mm |
Frequency | 21'600 Bpm |
Power reserve | 38h |
Ruby | 19 |