The Eterna 1423 calibre stands as a hallmark of mid-20th-century Swiss horology, cherished by vintage watch enthusiasts and hobbyist watchmakers for its compact engineering and reliability. Produced from the early 1950s to late 1950s, this manual-wind movement powered elegant dress watches, blending precision with understated craftsmanship.
Historical Context
Emerged during Eterna’s post-war innovation phase, showcasing the brand’s expertise in slim, high-beat calibers.
Often found in Eterna’s KonTiki and dress models, appealing to collectors for its role in 1950s vintage revivals.
Featured an optional micrometer regulator for fine adjustments, a boon for hobbyists restoring originality.
Technical Specifications
Diameter: 10.5 lignes (approximately 23.3 mm), ideal for slim cases.
Height: Around 2.5 mm, enabling ultra-thin profiles under 9 mm total watch thickness.
Jewels: 17, strategically placed for reduced friction.
Frequency: 19,800 vph (3.5 Hz), balancing smoothness and longevity.
Power reserve: Approximately 40-45 hours when fully wound.
Functions: Hours, minutes, central seconds; hacking capability in some variants.
Finish: Nickel-plated bridges with blued screws, Geneva stripes optional.
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Watch Parts Enquiry
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Stem, Crown, Hands & Spares might be available for this movement.
Email us for rate and availability: [email protected]
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