ETA 2620 Automatic Watch Movement - Technical Data and Parts List
Technical data sheet for the ETA 2620 automatic watch movement manufactured by ETA S.A., Grenchen, Switzerland. Documents the base caliber 2620 and all variants including 2622, 2623, 2638, and 2639, each equipped with instantaneous date and day-of-week complications. Includes detailed technical specifications: escapement dimensions, mainspring force data, balance wheel measurements, hairspring characteristics, and complete mechanical specifications. Features an illustrated parts list with multilingual material descriptions identifying every component. All specifications and part numbering follow ETA factory standards.
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
- 4
- Size
- 2.8 MB
- Category
- Watchmaking