Seiko Quartz Cal. 5420A Parts Catalogue and Technical Guide
Complete parts catalogue and technical guide for the Seiko Quartz Cal. 5420A movement. Includes numbered parts diagrams showing train wheel bridge, center wheel, pinion, winding stem, minute wheel, hour wheel, step rotor, circuit block components, battery connections, and regulating switch lever. Technical specifications cover case diameter 13.0 x 15.1 mm, 2 jewels, 32.768 Hz quartz crystal oscillator, and 2-pole step motor. Detailed disassembly and reassembly procedures with lubrication charts, time accuracy adjustment instructions using regulating switch lever, circuit block structure diagrams, and comprehensive checking and adjustment procedures including output signal verification, battery voltage testing, coil block conductivity, and current consumption measurement.
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Document Details
- Format
- Pages
- 9
- Size
- 265.8 KB
- Category
- Horlogerie