Seiko Cal. 7F38A, 7F39A, 7F68A, 7F69A Parts Catalogue and Technical Guide
Comprehensive parts catalogue and technical service guide for Seiko quartz watch movements Cal. 7F38A, 7F39A, 7F68A, and 7F69A. This workshop manual supplies watch technicians with detailed component specifications, exploded assembly diagrams for case, hands, dial, and movement subassemblies, and precise part numbering for every replaceable element. Includes movement schematics covering both 2-hand and 3-hand configurations, moon phase indicator technical data, and complete lubrication charts specifying oil application points and quantities. Battery specifications detail the SR916SW silver oxide cell (Maxell-compatible) with approximately 3-year service life at 1.55V nominal voltage. Calendar mechanism parameters, measurement tolerances, and assembly procedures enable comprehensive repair and maintenance work. An essential technical reference for professional watch repair.
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Document Details
- Format
- Pages
- 10
- Size
- 280.0 KB
- Category
- Watchmaking