Omega 630-1255, Friction spring, NOS
- NOS OMEGA original part, not in factory packaging.
- Fits cal: 630
Data Omega cal: 630 (17.50 SC PC AM 17 P).
- 17 jewels, manual wind, sweep second.
- Size: 17,5 mm.
- H: = 3.0 mm.
- N: = 19.800 A/h.
- Power reserve: 42 h.
Versions:
- 620: N: 19800.
- 630: N: 19800, center second.
