
Seiko 6138A Automatic Chronograph Service Manual
Complete service manual for the Seiko 6138A automatic chronograph. Contains specifications (27.00mm case diameter, 21,600 vibrations per hour), detailed mechanical diagrams of the automatic winding mechanism, calendar mechanism, chronograph mechanism, train wheel assembly, hour chronograph mechanism, operation procedures for chronograph functions, resetting and starting mechanisms, and setting mechanism instructions. Includes numbered parts list with component identification, lubrication specifications, and assembly/disassembly procedures.
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
- 7
- Size
- 715.7 KB
- Category
- Horlogerie