Eterna

With a history dating back to 1856, Eterna has consistently pioneered watchmaking innovations, most notably the revolutionary Eterna-Matic rotor bearing system using tiny ball bearings, which transformed automatic movement reliability. The brand invented the side-mounted rotor, leading to the development of ultra-thin automatic movements. Their KonTiki collection, named after Thor Heyerdahl's famous expedition, represents their expertise in robust sports watches. Today, Eterna continues to innovate in movement manufacturing through their subsidiary, ETA, while maintaining their reputation for technical excellence and reliability.


Families


Current Listings

[WTS] 1941 Eterna Manual Wind Cal. 520 | $240

1941 Eterna Manual Wind Cal. 520 | $240

Eterna - 520 · $240
This 1941 Eterna features a stainless steel case, simple manual wind Caliber 520 movement, and a balanced dial with blue steel hands.

  • Condition: Honest vintage condition with attractive patina, crisp case edges, and original bluing of hands
  • Case size: 30.5 x 36 mm with 9.9mm thickness and 16mm lug width
  • Movement: Eterna Caliber 520, manual wind with 15 jewels, 42-hour power reserve, and 18,000 bph
Posted at
Oct 23, 2025, 3:00 PM
Active
[WTS] 1941 Eterna Manual Wind Cal. 520 | $250

1941 Eterna Manual Wind Cal. 520 | $250

Eterna - 520 · $250
This 1941 Eterna captures the basic yet functional aesthetic of late-1930s watch design, with a clean and minimalist dial and a stainless steel case.

  • Condition: Honest vintage condition, with attractive patina on the dial, original bluing on hands, and crisp case edges.
  • Case Size: 30.5 x 36 mm
  • Movement Type: Manual wind
  • Jewels: 15
Posted at
Oct 16, 2025, 1:16 PM
Active