Cal. 2K02A, 2K03A Parts Catalogue and Technical Guide
Comprehensive parts catalogue and technical service manual for Seiko Cal. 2K02A and 2K03A quartz watch movements. This workshop guide covers complete movement specifications including 18.4 mm diameter, 2.5 mm height, three-hand display configuration, and step motor drive system. Detailed disassembly and reassembly procedures with numbered technical diagrams walk technicians through every stage of service work. The parts list provides full reference numbers for all components, while dedicated sections address lubrication requirements, circuit block architecture with C-MOS IC integration, and electrical parameter verification including coil block resistance values (2.3kΩ–2.7kΩ range) and current consumption testing. Assembly notes ensure proper train wheel setting lever adjustment and train wheel bridge positioning for accurate timekeeping. Essential reference for professional watch repair, maintenance, and parts identification.
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Document Details
- Format
- Pages
- 6
- Size
- 181.7 KB
- Category
- Watchmaking