ETA 2442
Mechanical
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Notes
smallest ETA calibre
early fixed (Fig.1), later mobile stud carrier (Fig.3)
indirectly driven minute allows a very big balance
Dimensions
| Width | 13.5 lignes (30.45 mm) |
|---|---|
| Height | 3.2 mm |
| Stem height | 0.8 mm |
| Hands (H × M × S) | 1 × 0.5 × ? mm |
Technical data
| Beat rate | 21,600 vph (3 Hz) |
|---|---|
| Lift angle | 53 ° |
| Power reserve | 41 h |
| Jewels | — |
| Shock protection | — |
| Mobile stud carrier | No |
Complications
| Self winding | No |
|---|---|
| Date | No |
| Day | No |
| Hacking | No |
| Chronograph | No |
Mainspring
| GR code | — |
|---|---|
| Height | 1.43 mm |
| Thickness | 0.07 mm |
| Length | 190 mm |
| Barrel diameter | — |
Overview
| Type | Mechanical |
|---|---|
| Manufacturer | ETA |
| Year | — |
| Family | — |
| Clone of | — |
Related calibers
Documents
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Updated 7 days ago · 0 revisions