CAL. Y48 Series Analog Quartz Technical Data
Technical data and service manual for the SEIKO CAL. Y48 series analog quartz movement (Y480A, Y480B, Y481A, Y481B, Y482A). This workshop reference covers complete specifications and circuit block schematics alongside practical disassembly and reassembly procedures. It includes detailed lubrication guidelines, cleaning methods, and comprehensive checking and adjustment protocols essential for service technicians. Battery voltage and life verification sections detail proper testing methodology, while circuit block conductivity checks and coil block testing procedures support reliable performance diagnostics. Accuracy verification and time adjustment techniques round out the repair manual data needed for professional movement maintenance and restoration.
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
- 11
- Size
- 563.1 KB
- Category
- Watchmaking