Seiko V50 Series Service Manual - Cal. V50A V501A
Service manual for Seiko V50 series quartz watch movements (V50A and V501A calibers). This workshop manual provides complete technical specifications for these compact stepping-motor driven movements, including physical dimensions (Ø 15.3mm–18.2mm, height 2.99mm), time display configurations with 2 or 3 hands, electronic circuit reset functionality, and battery specifications (1.56V nominal, approximately 2-year service life). The repair guide covers essential after-sales servicing procedures: winding stem removal and reinstallation techniques, hand setting on the fourth wheel, and current consumption measurement using the Seiko Digital Multi-Tester S-840A. Detailed sections address the zero-jewel movement construction, heat-treated movement components specific to Seiko's after-sales servicing system, and proper electrical circuit diagnostics. An indispensable parts list and maintenance reference for service technicians working with these reliable quartz calibers.
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Document Details
- Format
- Pages
- 2
- Size
- 79.5 KB
- Category
- Watchmaking