Le Coultre Caliber 9 (460, 490, 491) Technical Data and Parts List
Complete technical data and parts list for Le Coultre caliber 9 movements (460, 490, 491). These 18,000 alternations per hour balance wheel movements feature a total height of 3.50 mm with 17-jewel execution. Includes detailed exploded component diagrams showing the main plate, gear train wheels, escapement assembly, balance wheel, and specialized components. Covers variants including flat spiral hairspring options. An essential reference for watchmakers performing repairs, restoration, and maintenance on these precision movements.
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Document Details
- Format
- Pages
- 1
- Size
- 1.1 MB
- Category
- Watchmaking