Eterna 1195: A Vintage Automatic Powerhouse
The Eterna Caliber 1195, launched around 1948, marks a pivotal moment in horology as part of Eterna’s pioneering Eterna-matic series—the brand’s first rotor automatics. Tailored for men’s watches at 8.25 lignes, this movement introduced bi-directional winding via a revolutionary 5-ball-bearing rotor, minimizing friction for superior efficiency. Vintage enthusiasts prize it for its clean design, durability, and role in post-WWII Swiss innovation, often found in 1950s dress watches.
Historical Context
Emerged post-hammer-winding era, succeeding Eterna’s Cal. 1158 (1946).
Built on Cal. 1194 (7.75 lignes for ladies), scaling up for larger cases.
Featured low-friction, springless double-click wheel for smooth operation.
Produced during Eterna’s golden age, emphasizing reliability over complexity.
Technical Specifications
Size: 8.25 lignes (approximately 18.5 mm diameter), slim profile around 5-6 mm thick.
Type: Automatic self-winding with central sweep seconds.
Winding: Bi-directional rotor on 5 jewel ball bearings (0.65 mm diameter each).
Jewels: 17-25 (variations exist; often upgraded in service).
Frequency: 18,000 vph (5 Hz), Glucydur screwed balance.
Hairspring: Flat Nivarox for stability.
Shock Protection: Eterna-U system.
Mainspring: Eterniflex, enabling extended power reserve (36-40 hours).
Functions: Time-only (hours, minutes, sweep seconds); no date in base 1195.
Finishing: Perlage on plates, minimal markings, rotor dominates visually.
For any Watch Spare Parts inquiry, Email us for rate and availability: [email protected]
Watch Parts Enquiry
* If you are unable to fill out any of the required information fields, please type “N/A”.
Stem, Crown, Hands & Spares might be available for this movement.
Email us for rate and availability: [email protected]
Mobile/WhatsApp: +91- 9841 360 340