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. Includes detailed exploded views with numbered parts, technical specifications, disassembly/reassembly procedures, remarks on specific components (dial, hands, capacitor unit, train wheel bridge, date mechanisms), installation instructions, checking procedures for quick start function and capacitor conductivity, lubrication guidelines, and troubleshooting chart for electronic circuit checks.
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Document Details
- Format
- Pages
- 19
- Size
- 520.1 KB
- Category
- Horlogerie