Seiko Cal. Y187B Chronograph Parts Catalogue and Technical Guide
Complete parts catalogue and technical guide for the Seiko caliber Y187B chronograph movement. This service manual provides detailed specifications and component diagrams with part numbers for accurate ordering and identification. It covers full disassembly and reassembly procedures with lubrication points clearly marked, battery information, and functional checking procedures to verify operation after service. Also included are circuit block structure diagrams, dial variations, and technical remarks on wheel combinations and winding stem specifications. An essential workshop reference for repair technicians and horologists working on this quartz chronograph caliber.
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Document Details
- Format
- Pages
- 8
- Size
- 496.0 KB
- Category
- Watchmaking