ETA 2620 Automatic Watch Movement - Technical Documentation
Technical documentation for the ETA 2620 automatic watch movement manufactured by ETA S.A., Grenchen, Switzerland. Includes detailed specifications for base caliber 2620 and variants 2622, 2623, 2638, and 2639 with instantaneous date and day-of-week complications. Contains technical measurements, escapement specifications, spring data, hairspring dimensions, balance wheel specifications, and complete illustrated parts list with component numbering and multilingual material descriptions.
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Document Details
- Format
- Pages
- 4
- Size
- 2.8 MB
- Category
- Horlogerie