ETA 2821
Mechanical
c. 1971
Self-winding (rotor)
Hacking
No photos yet
Notes
1971-1979, 1618952
Dimensions
| Width | 25.6 lignes (57.75 mm) |
|---|---|
| Height | 4.6 mm |
| Stem height | 1.2 mm |
| Hands (H × M × S) | 1.5 × 0.9 × 0.25 mm |
Technical data
| Beat rate | 28,800 vph (4 Hz) |
|---|---|
| Lift angle | 53 ° |
| Power reserve | 40 h |
| Jewels | — |
| Shock protection | — |
| Mobile stud carrier | No |
Complications
| Self winding | Rotor |
|---|---|
| Date | No |
| Day | No |
| Hacking | Yes |
| Chronograph | No |
Mainspring
| GR code | GR3149-X |
|---|---|
| Height | 1.25 mm |
| Thickness | 0.13 mm |
| Length | 420 mm |
| Barrel diameter | 12 mm |
Overview
| Type | Mechanical |
|---|---|
| Manufacturer | ETA |
| Year | c. 1971 |
| Family | — |
| Clone of | — |
Related calibers
Documents
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Updated 7 days ago · 0 revisions