Seiko Quartz Cal. 7A28A Parts Catalogue
Seiko Quartz Cal. 7A28A Parts Catalogue — comprehensive parts list and reference guide for the iconic 7A28A chronograph movement. This catalogue provides exploded diagrams of every internal component, making identification and sourcing straightforward for watchmakers and technicians. Covers both dial variations fitted to 7A28A watches, with the movement's characteristic 1/5 second chronograph function fully detailed. Each part carries its official Seiko reference number for accurate ordering and assembly verification. An essential workshop resource for anyone servicing or restoring quartz chronographs from this generation.
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Document Details
- Format
- Pages
- 11
- Size
- 523.2 KB
- Category
- Watchmaking