Seiko 2906A Caliber 17j Parts List and Technical Data
Seiko 2906A automatic watch movement parts list and technical data for the 17-jewel caliber. This service documentation provides complete specifications for understanding and working with this movement, including casing diameter of 18.00 mm, maximum height of 8.35 mm, and the automatic sweep second hand mechanism. The illustrated parts list breaks down every numbered component with detailed technical characteristics and important remarks covering variant configurations—date dials, day-date wheels, holding rings, and case screws are documented with their specific applications. An essential reference for watchmakers, technicians, and collectors maintaining or repairing this classic Seiko automatic caliber.
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Document Details
- Format
- Pages
- 6
- Size
- 338.9 KB
- Category
- Watchmaking