![ZENITH 30.5-770, Mainspring](http://urdelar.se/cdn/shop/files/0000_zenith_1_6561c1a4-79f8-4fc6-8570-1e474c53709e_{width}x.jpg?v=1695555928)
ZENITH 30.5-770, Mainspring
- ZENITH/OMEGA original minpring in factory sealed packaging.
- Fits Omega: 625
- Fits Zenith: 30.5
Manufactured from 1973 - 1979
Data ZENITH cal: 30.5 (OMEGA 625)
- 17 jewels, manual wind.
- Size: 17.5 mm.
- H: = 2.5 mm.
- N: = 21.600 A/h.
- Power reserve: 42 h.
- Mainspring: 1.00 x 6.5 - 0.075