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Description
- CERTINA original winding stem, not in factory packaging.
- Thread: 0.90 MM.
- Fits cal: 17.25, 17.251
Technical data Certina cal: 17-25
- 17 jewels, manual wind, sweep second.
- S: = 7.75''' 17.2 mm.
- H: = 3.7 mm.
- N: = 19.800 A/h.
- Power reserve: 44 h.
Versions:
- 17-25:
- 17-251: date.
