Eterna was founded in Grenchen, Switzerland in 1856 and is remembered for technical contributions to automatic watchmaking, including the ball‑bearing rotor system introduced in 1948 for the Eterna‑Matic. The company’s movement-making legacy also influenced the wider Swiss industry through historic links to movement production. Collectors value vintage Eterna for solid engineering, clean mid‑century design, and watches that reflect a reputation for practical innovation and durable build quality.
| Reference | 4317978 |
|---|---|
| Size | 35mm |
| Movement | Automatic |