SEIKO 66A-231660, Third wheel
SEIKO original part from a NOS movement
- Fits cal: 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:
- 66B: base caliber
SEIKO original part from a NOS movement
Characteristics:
Versions:
