Omega 320-1321, Balance staff
- OMEGA original part, not in factory packaging.
- Fits cal: 320, 321
Data: Omega 321 (base caliber: Lemania CH27 C12).
- 17 jewels, manual wind chronograph, 60 s, 30 min, 12 h counter.
- Size: 12''' 27 mm.
- H: = 6,74 mm.
- N: = 18000
- Power reserve: 44 h.
Versions:
- 320: 60s, 30 min counter, H=5,57 mm, (base: Lemania CH27).
- 321: 60s, 30 min, 12 h counter, (base: Lemania CH27 C12).