Certina 17.351-404, Stem for waterproof case

• CERTINA original inner winding stem.
  

• Fits cal. 17.35, 17.351, 17.36, 17.361

Versions, New generation:

• 17-35:    21.600 A/h, automatic wind, sweep second.
  
• 17-351:  21.600 A/h, automatic wind, sweep second, date.
• 17-36:    21.600 A/h, manual wind, sweep second.
• 17-361:  21.600 A/h, manual wind, sweep second, date.