Seiko Quartz Cal. 2E20A Technical Guide and Parts Catalogue
Technical service manual for Seiko Quartz movement caliber 2E20A. Includes specifications, circuit block structure, disassembly and reassembly procedures with lubrication guidelines, and checking and adjustment procedures. Contains detailed diagrams of mechanical components, parts list with reference numbers, and procedures for hands setting, battery clamp installation, coil block work, and step rotor assembly. Covers output signal verification, battery testing, gear train inspection, and accuracy adjustment using the regulating switch lever.
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Document Details
- Format
- Pages
- 9
- Size
- 308.0 KB
- Category
- Horlogerie