Seiko Quartz Cal. 7903A Technical Guide & Parts List
Technical guide and parts list for the Seiko Quartz Cal. 7903A ladies watch movement. Includes specifications (32.768 Hz oscillator, step motor system, trimmer condenser regulation), exploded diagrams of the calendar mechanism, circuit block, coil block and gear train, setting mechanism, and detailed disassembly/reassembly procedures with lubrication tables. Comprehensive checking and adjustment procedures covering output signal, battery voltage, electronic circuit block, coil block, accuracy and current consumption. Parts list with numbered references and internal component illustrations.
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Document Details
- Format
- Pages
- 14
- Size
- 568.9 KB
- Category
- Horlogerie