SEIKO 66A, 66B
Characteristics:
- 17 Jewels, manual wind.
- Size: 10.5''', 23,6 mm.
- H: = 3.85 mm.
- N: = 18.000 A/h.
- Power reserve: 44 h.
Versions:
- 66A: Changes to center wheel, cannon pinion, sweep second wheel and setting mech.
- 66B: Base caliber
Characteristics:
Versions:
