The Eterna Caliber 1470 is a compact, jewel‑filled automatic movement from the 1950s–1960s that appeals to vintage watch restorers and collectors who appreciate Swiss engineering from the “golden era” of mechanical watches.
Why It Matters to Enthusiasts
It belongs to a family of Eterna automatics (1470, 1471, 1480, 1481) that were widely used in mid‑range and dress watches, so spare parts sets and donor movements are still available.
The movement is mechanically robust for its size, with a pawl winding system and a ratchet shared with the earlier Eterna 1438, making certain repairs and servicing easier for hobbyist watchmakers.
Many Eterna 1470 movements carry the “K” suffix, indicating Kif‑Ultraflex shock protection, which is a desirable feature for vintage calibres and a neat detail for collectors.
Its slim profile (around 4.55 mm) made it a good fit for dress watches, and overhauling one can be a satisfying challenge for those who work on small, high‑jewel movements.
Technical Specification
Diameter: Produced in both 12.5 ligne and 13 ligne sizes, so case compatibility must be checked carefully in vintage pieces.
Height: Approximately 4.55 mm thick in both date and non‑date versions, making it a low‑profile automatic for the era.
Jewels: 21 jewels, fully jewelled for long service life and smooth running when properly serviced.
Frequency: Beats at 21,600 A/h (3 Hz), which is standard for many Swiss movements of that period.
Power reserve: Around 44 hours, respectable for a vintage self‑winding movement.
Winding: Automatic pawl winding system with an auxiliary reversing wheel, shared with Caliber 1438.
Variants:
Cal. 1470 – 12.5 ligne, no date
Cal. 1480 – 12.5 ligne, with date
Cal. 1471 – 13 ligne, no date
Cal. 1481 – 13 ligne, with date.
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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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