Hattori Seiko Cal. V400A V401A Parts Catalogue & Technical Guide
Hattori Seiko caliber V400A and V401A quartz movement parts catalogue and technical guide. Covers complete specifications for both 2 and 3-hand configurations, step motor drive systems, and battery types. Includes detailed parts identification diagrams, circuit block structure, train wheel bridge positioning, main plate lubrication protocols, and component specifications. Features numbered parts diagrams identifying every component with technical references. An essential workshop reference for technicians servicing these Seiko quartz movements.
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Document Details
- Format
- Pages
- 6
- Size
- 195.6 KB
- Category
- Watchmaking