Y150A Movement Parts Catalogue and Technical Guide
Parts catalogue and technical guide for the Seiko Cal. Y150A quartz movement. This service manual covers complete specifications, step-by-step disassembly and reassembly procedures, detailed parts list with numbered exploded diagram, circuit block architecture, and valve checking protocols. The Y150A movement features a 2-hand display with 20-second step intervals and uses a stepper motor drive system, delivering approximately 3 years of battery life when powered by SR416SW mercury cells at 1.55V. An essential reference for repair technicians and watchmakers servicing this reliable quartz caliber.
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Document Details
- Format
- Pages
- 4
- Size
- 1.2 MB
- Category
- Watchmaking