Zenith El Primero Cal. 400 Technical Data
Technical service manual for the Zenith El Primero chronograph movement caliber 400 (3019 PHC), equipped with 31 jewels. This comprehensive workshop documentation provides detailed servicing instructions, dismantling and assembly procedures, lubrication specifications, and final adjustment checklist essential for maintenance of this Swiss-made automatic chronograph caliber. Covers the movement's main technical features and performance advantages, with step-by-step guidance for technicians performing repair, restoration, and precision timing work on El Primero watches.
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Document Details
- Format
- Pages
- 101
- Size
- 41.9 MB
- Category
- Watchmaking