Encyclopedia · Movements
Movement & calibre database
Technical records for landmark calibres — from railroad pocket watches to tuning-fork, quartz and Spring Drive movements. Select up to four to compare. For how the parts work, see the mechanism encyclopedia.
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| Specification | ETA 2824-2 |
|---|---|
| Manufacturer | ETA (Swatch Group) |
| Type | Automatic |
| Winding | Automatic (bidirectional rotor), hand-winding, hacking |
| Production | 1971 (2824), 2824-2 revision later |
| Country | Switzerland |
| Diameter | 25.6 mm (11½ lignes) |
| Height | 4.6 mm |
| Jewels | 25 |
| Frequency | 28,800 vph (4 Hz) |
| Power reserve | c. 38 h (longer in later versions) |
| Complications | Date |
| Status | Documented |