OMEGA 320, 321-1327, Balance, complete - NOS

NOS OMEGA original balance, complete from an old assortment without factory packaging. In perfect condition. 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).