Eterna Caliber 1407: A Vintage Gem for Enthusiasts
The Eterna Caliber 1407 stands as a pinnacle of mid-20th-century Swiss horology, captivating vintage watch collectors and hobbyist watchmakers with its elegant manual-wind design. Produced in the 1940s-1950s by Eterna, this movement reflects the brand’s pioneering spirit in precision engineering, predating their famous self-winding innovations.
Historical Context
Eterna, founded in 1856, earned acclaim for advancing watch mechanics during the post-war era. The 1407 emerged as a reliable workhorse in dress watches, influencing later designs like the Caliber 1408 and even elements seen in Zenith’s Caliber 135. Its gear train layout—featuring indirect minute wheel drive via a large dial-side wheel—showcased forward-thinking efficiency for manual movements.
Technical Specifications
Type: Manual wind, three-hand (hours, minutes, seconds).
Jewels: 17-19 jewels for reduced friction.
Diameter: 11.5”’ (26 mm), fitting slim cases.
Height: Approximately 3.5 mm, ultra-thin profile.
Frequency: 18,000 vph (2.5 Hz), smooth sweeping seconds.
Power reserve: Around 40-45 hours.
Balance: Glucydur with flat Nivarox hairspring; optional Eterna shock protection.
Adjustments: Typically 3 positions for accuracy.
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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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