SEIKO 4402-811860, Spring for date jumper
SEIKO original spring, brand new old stock (NOS) spring for date jumper for vintage Seiko mechanical movements. Sourced directly from a unused NOS movement. Perfect cosmetic and mechanical condition.
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SEIKO part number: 811860
Cross-Compability: This part is factory certified to fit the following Seiko calibers:
- 4402A/B
- 7605A, 7606A, 7619A, 7622A/C/D, 7625A/C/D/E
- 820, 860
Technical data Seiko 4402A (King Seiko Calendar).
- 25 Jewels, manual wind, date.
- Size: 12.25''' 27.60 mm.
- H: = 4.40 mm.
- N: = 18.000 A/h.
- Power reserve:
Technical data Seiko 7625A (Sportsmatic Calendar)
- 17 Jewels, automatic wind, date.
- Size: 12.25''' 27.60 mm.
- H: = 7.70 mm.
- N: = 18.000 A/h.
- Power reserve:
