Seiko Cal. 8S21A/8S23A Parts Catalogue and Technical Guide
Complete parts catalogue and technical guide for Seiko solar quartz watch movements Cal. 8S21A and Cal. 8S23A. This workshop manual features detailed exploded views with numbered components, technical specifications, and step-by-step disassembly and reassembly procedures essential for professional service work. Includes manufacturer remarks on critical parts such as the dial, hands, capacitor unit, train wheel bridge, and date mechanisms. The guide covers installation instructions, checking procedures for quick-start function and capacitor conductivity testing, lubrication guidelines for optimal movement performance, and a comprehensive troubleshooting chart for electronic circuit diagnosis. An invaluable reference for watch technicians and repair professionals working with these solar-powered movements.
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Document Details
- Format
- Pages
- 19
- Size
- 520.1 KB
- Category
- Watchmaking