Seiko Cal. 8V20A Parts Catalogue and Technical Guide
Parts catalogue and technical guide for Seiko Cal. 8V20A quartz chronograph movement. Includes detailed specifications, disassembly and reassembly procedures with numbered component diagrams, circuit block structure, auxiliary train wheel bridge positioning, coil block and rotor stator placement, train wheel bridge setup, and electrical value checking for coil blocks and upconverter coil. Battery specifications: SR1130W, approximately 2 years life, 1.55V. Monthly rate: less than 20 seconds. Features 24-hour alarm, countdown timer up to 30 minutes, stopwatch up to 30 minutes in 1/10 second increments.
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Document Details
- Format
- Pages
- 5
- Size
- 139.2 KB
- Category
- Horlogerie