Seiko 8S21A 8S23A Solar Watch Parts Catalogue Technical Guide
Seiko 8S21A 8S23A Solar Watch Parts Catalogue and Technical Guide — comprehensive service reference for these compact solar quartz movements. Features detailed exploded views of all movement components with annotated part identification. Provides complete specifications including physical dimensions (outside diameter 24.0–29.5mm, height 2.9–3.0mm) and full solar cell and capacitor power supply architecture. Includes assembled parts listing with factory part numbers for accurate component sourcing and replacement. Step-by-step disassembly and reassembly procedures cover critical areas: dial and hands installation, circuit block integration, train wheel bridge positioning, and date mechanism setup. Dedicated sections on checking and adjusting the quick start function and capacitor unit conductivity ensure proper movement function after service. Essential reference for watch technicians and authorized service centers working on these solar calibers.
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Document Details
- Format
- Pages
- 19
- Size
- 519.4 KB
- Category
- Watchmaking