The Eterna 1447 is a classic 1950s–60s manual‑wind movement, beloved by vintage watch collectors for its solid build and elegant regulator layout. It was often used in Eterna’s dress watches and some models from Tissot and Omega under ETA licensing, making it a good find for tinkerers and restorers of mid‑century Swiss timepieces.
Why vintage enthusiasts like it
It’s a slim, clean manual movement with a very teachable layout, great for beginners learning hand‑wound calibres.
The engraving and finish are typical Swiss mid‑century: good Côtes de Genève on the mainplate and bridge, with a nicely blued screw or two on the regulator.
Spare parts (like the balance, hairspring, and setting parts) are still available from specialist suppliers and donor movements, which helps with servicing.
It’s robust for daily wear, with reliable shock protection (often Eterna‑U or Incabloc) and a decent power reserve once fully wound.
Key technical specs
Type: Manual‑wind, lever escapement, no auto winding.
Diameter: 11½ lignes (approx. 25.7 mm).
Height: Around 3.9–4.1 mm.
Jewels: Usually 17 or 19 jewels, depending on variant and grade.
Frequency: 18,000 vibrations per hour (2.5 Hz, 6 beats per second).
Power reserve: Roughly 36–40 hours on a full wind.
Functions: Hours, minutes, central seconds, and often a small date at 3 o’clock (depending on dial variant).
Shock system: Typically Eterna‑U or Incabloc, protecting the balance pivots.
Hairspring: Nivarox, flat, with a Breguet or similar overcoil on some versions.
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