Certina 17.25-450, Setting wheel

• CERTINA original part in very good used condition.

• Fits cal: 17.25, 17.251
  

Versions, Manual wind:

• 17-10:   18.000 A/h, manual wind, sub second.
• 17-11:   18.000 A/h, manual wind, sub second, maunting flanges on plate.
• 17-12:   19.800 A/h, manual wind
• 17-25:   19.800 A/h, manual wind, sweep second.
  
• 17-251: 19.800 A/h, manual wind, sweep second, date.