ETA 2890 2892 Watch Movement Technical Data and Parts List
Technical specifications document for ETA 2890 and 2892 watch movements from Fabrique d'Ebauches ETA S.A., Grenchen, Switzerland. Provides detailed caliber data including dimensional specifications in millimeters (height 3.60mm), escapement configuration (20.3mm jeweled anchor escapement), balance wheel adjustment parameters, and comprehensive parts list with exploded diagrams for both base caliber 2890 and variant 2892. The movements operate at 4 Hz frequency (28,800 vibrations per hour) in extra-flat profile with direct-sweep seconds hand, self-winding mechanism with ball-bearing rotor, date correction capability, and fine adjustment features. Includes technical characteristics, dimension tables, needle adjustments, and complete component identification for watchmakers and technicians. Document reference: ETA 9, dated 1976.
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Document Details
- Format
- Pages
- 2
- Size
- 2.9 MB
- Category
- Watchmaking