Seiko Cal. Y513A Analogue Quartz Service Manual
Service manual for the Seiko Cal. Y513A analogue quartz wristwatch. Provides complete technical specifications for the Y513A calibre, including the 2-jewel movement, 37.768 Hz crystal oscillator, 2-pole stop motor system, rotary step-switch regulation mechanism, and 1.55V silver oxide battery requirements. Covers time and calendar setting with detailed crown positioning instructions, dual-language calendar day and date adjustment via the bilingual change mechanism, operational theory of both the electronic circuit block and mechanical train, and precise time accuracy calibration procedures. Includes step-by-step disassembly and reassembly sequences for the calendar mechanism and circuit block assembly with complete lubrication guidance, cleaning protocols, and comprehensive checking and adjustment procedures to restore the movement to specification. This workshop manual serves as the authoritative repair guide for service technicians working on this popular Seiko quartz calibre.
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Document Details
- Format
- Pages
- 16
- Size
- 902.1 KB
- Category
- Watchmaking