ZENITH Winding Stem 40-401 Thread 1.00mm - Cal. 40-40T Swiss Movement Part

Original ZENITH Winding Stem 40-401 Thread 1.00mm

Complete your ZENITH movement restoration with this authentic winding stem for multiple calibers. This essential component connects the crown to the movement's winding mechanism, ensuring reliable manual winding operation and precise time setting in ZENITH's classic movements.

Technical Specifications:

• Brand: ZENITH Swiss Made
• Part Number: 40-401
• Type: Winding stem
• Thread: 1.00mm
• Compatible Calibers: 40, 40T
• Condition: New original part in perfect condition
• Quality: Professional watchmaker inspected
• Status: Ready to use
• Function: Crown to movement connection

Multi-Caliber Compatibility:

This winding stem serves ZENITH calibers 40 and 40T, making it a valuable component for restoration projects. Its precision engineering with 1.00mm thread ensures reliable crown operation and smooth winding functions.

Perfect New Condition:

✅ 100% Original ZENITH winding stem
✅ New condition, no damages
✅ Compatible with Cal. 40-40T
✅ 1.00mm thread specification
✅ Professional watchmaker approved

Perfect for: ZENITH Cal. 40-40T restoration, crown mechanism repairs, stem replacement, or ensuring reliable crown-to-movement connection in classic ZENITH movements.