Seiko 6138A Automatic Chronograph Parts List and Technical Data
Technical parts list and specifications for the Seiko 6138A automatic chronograph, a high-beat movement with a 27.00mm case diameter and 8.00mm maximum height operating at 21,600 vibrations per hour. This workshop manual details the automatic winding mechanism with manual hand-winding capability, sweep seconds hand, and a dual-display calendar system featuring day and date windows with a bilingual day-of-week selector. The repair guide provides comprehensive parts identification and technical designations throughout the movement, covering the automatic rotor assembly, calendar train, chronograph mechanism, gear train, escapement, and all associated components with their corresponding reference numbers for accurate servicing and maintenance.
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Document Details
- Format
- Pages
- 7
- Size
- 715.7 KB
- Category
- Watchmaking