Eterna Caliber 1488 and 1489 Technical Data
Technical data and specifications for Eterna automatic watch movements caliber 1488 and 1489. Presents dial-side and movement-side views with precise dimensional specifications: caliber 1488 measures 12½ lines (27.60 mm), caliber 1489 measures 13 lines (29.00 mm). Balance wheel diameter 5.20 mm, operating frequency 21,600 oscillations per hour. Includes detailed movement diagrams identifying components and their arrangement, along with part numbers and assembly relationships.
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Document Details
- Format
- Pages
- 1
- Size
- 913.9 KB
- Category
- Watchmaking