Seiko Cal. H021A Parts Catalogue and Technical Guide
Parts catalogue and technical guide for Seiko Cal. H021A hybrid analog-digital watch movement. Includes specifications, disassembly/reassembly procedures with numbered parts diagrams, remarks on battery installation and hand positioning, train wheel bridge settings, motor distinctions, and value checking data. Step motor driving system with multiplex digital display (LCD) and analog section with 3 hands.
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Document Details
- Format
- Pages
- 9
- Size
- 257.6 KB
- Category
- Horlogerie