Seiko Quartz Cal. 7A38A Parts Catalog
Complete parts catalog for the Seiko Quartz Cal. 7A38A chronograph movement, essential for watchmakers and repair technicians servicing this iconic integrated chronograph caliber. The catalog presents a detailed exploded diagram mapping all internal components with comprehensive part numbering and cross-references. Covers the full 29.0 mm diameter, 4.6 mm height movement architecture including the main plate, all bridges, complete gear train assembly, chronograph mechanism with its specialized clutch and cam systems, and calendar module components. Provides part numbers for approximately 80+ individual components, enabling precise identification and sourcing of every element from jewels and springs to specialized chronograph wheels and calendar levers. Indispensable reference for movement disassembly, repair, and restoration work on 7A38A equipped watches.
Documentation must be downloaded on a computer (PC, Mac, or Linux).
Do not use a smartphone or tablet to download documentation; they generally lack sufficient memory capacity to handle large files, and few users know how to locate the download folder on these devices.
Once downloaded, you can use it right away and even print the pages you need, or use your smartphone in photo mode to translate into the language of your choice: Google Translate
Document Details
- Format
- Pages
- 9
- Size
- 378.9 KB
- Category
- Watchmaking