Seiko Quartz Cal. 7430A Parts Catalogue
Seiko Quartz Cal. 7430A parts catalogue and technical reference guide for watch technicians and repair specialists. Complete parts list with exploded diagrams and component identification for this widely-used quartz movement. Includes official part numbers, assembly sequences, and detailed specifications for all internal mechanisms—32.768 Hz crystal oscillator, two-pole step motor, and trimmer capacitor regulation system. Technical notes cover winding stems, lower end-piece screw positioning for the third wheel, and battery requirements. Essential workshop manual for servicing or rebuilding this movement; supplies the precision component references needed for accurate repair and reassembly.
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Document Details
- Format
- Pages
- 4
- Size
- 108.1 KB
- Category
- Watchmaking