Seiko Lassale Quartz Cal. 8420A Technical Guide
Technical manual for the Seiko Lassale Quartz Cal. 8420A quartz watch movement. Includes specifications (32,768 Hz frequency, 6 jewels, rotary step switch regulation), detailed parts list with numbered component illustrations, disassembly and reassembly procedures for the minute/hour hand, dial, hour wheel, and setting mechanism. Contains lubrication guidelines, circuit block structure diagram, and checking/adjustment procedures for output signal, battery voltage, conductivity, coil block resistance, reset condition, and current consumption.
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Document Details
- Format
- Pages
- 9
- Size
- 287.0 KB
- Category
- Horlogerie