Eterna Caliber 1117: A Vintage Gem for Enthusiasts
The Eterna 1117 stands as a hallmark of mid-20th-century Swiss horology, cherished by vintage watch collectors and hobbyist watchmakers for its robust construction and elegant simplicity. Produced from the 1950s onward, this manual-wind movement powered numerous Eterna dress watches, blending precision engineering with refined finishing that rivals higher-end contemporaries.
Historical Context
Introduced during Eterna’s golden era, the 1117 evolved from earlier calibers like the 1116, reflecting post-war innovations in balance design and shock protection. Hobbyists prize it for serviceability—disassembly reveals clean bridges and accessible jewels, ideal for restoration projects. Its no-frills manual winding appeals to purists avoiding automatic complications.
Technical Specifications
Diameter: 29.0 mm (11.5 lignes)
Height: 4.6 mm
Jewels: 17
Frequency: 18,000 vph (2.5 Hz)
Power Reserve: Approximately 44 hours
Functions: Hours, minutes, sweep seconds; central seconds
Winding: Manual via crown
Shock Protection: Incabloc or similar system
Balance: Glucydur or nickel, adjustable screws
Finishing: Geneva stripes on bridges, blued screws
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Watch Parts Enquiry
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Stem, Crown, Hands & Spares might be available for this movement.
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