ETERNAL 40s | VINTAGE CALATRAVA | mint
Minimalist Calatrava style Eterna in fantastic condition Switzerland, 1947
ETERNA | CALATRAVA | 35MM (37.5MM WITH CROWN) | MANUAL PULLOUT | SILVER DIAL WITH 12 HOUR SCALE | CAL. 520h | MINT CONDITION | 1947 | SWITZERLAND
Technically, the Eterna works flawlessly: (297°; +8s/d).
This Swiss watch manufacturer Eterna was founded in 1856 by the doctor Josef Girard and the teacher Urs Schild as the ébauche manufacturer Girard & Schild in Grenchen. It is also the nucleus of the largest Swiss watch movement manufacturer ETA SA.
The lettering Eterna has been on the dial since 1875. From 1932 the company was divided into:
- Eterna S.A. as a manufacturer of precision watches and the
- ETA SA as a manufacturer of watch raw movements.
From this division, the companies were managed via the holding company ASUAG.
This caliber 520h corresponded to the chronometer standards of the time. In 1947, Eterna equipped Thor Heyerdahl's expedition team on the raft Kon-Tiki with the watches. And in 1948, the manufacturer presented the Eterna-Matic, a ball-bearing rotor for automatic winding. Even today, the company logo contains these 5 balls as a sign of the invention of the flywheel with ball bearings.
Eterna has been part of the Chinese company China Haidian since 2011.
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