ETA 2770, 2772, 2782 Watch Movement Technical Data and Parts List
Technical data and illustrated parts list for three ETA automatic watch movements (calibers 2770, 2772, 2782) manufactured by ETA S.A. Grenchen. This technical document provides complete mechanical specifications with all dimensions in millimeters, detailed component descriptions, and comprehensive parts lists with exploded views and numbered references. Cal. 2770 is a standard automatic movement with central sweep second hand. Cal. 2772 features an instantaneous date display window with rapid date correction capability. Cal. 2782 incorporates a date corrector mechanism for quick adjustment. The document covers technical specifications for the mainspring barrel, lever escapement assembly, balance wheel and hairspring, gear trains, winding stem mechanics, dial specifications, and all adjustment components. Includes French, English and German technical terms and labels throughout, essential reference for watchmakers and movement technicians identifying components and understanding mechanical specifications on these three caliber variants.
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Document Details
- Format
- Pages
- 3
- Size
- 1.7 MB
- Category
- Watchmaking