ETA 2660/2671/2678 Technical Communication
Technical data and parts interchangeability documentation for ETA calibres 2660, 2671, and 2678 watch movements. Provides detailed specifications for these 7¾″ diameter movements: 17–25 jewels, 42–38 hour power reserve, 28,800 Hz frequency, and 51° balance lift angle. Includes comprehensive interchangeability table covering over 100 components with original part numbers (No CS references) for all three calibres, enabling technicians to identify compatible replacement parts. Essential technical reference for servicing and maintaining these precision movements.
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
- 16
- Size
- 3.6 MB
- Category
- Watchmaking