Certina 23-35-404, Winding stem, split

• Certina original part, not in factory packaging.

• Movement stem, female.

• Fits cal: 23-35

Versions:

• 23-20: 18.000 A/h, sub second.
• 23-30: 19.800 A/h, sub second.
• 23-35: 18.000 A/h, center second.
• 23-36: 19.800 A/h, center second.