ETA 2366 – interchangeable spare parts

ETA 2366 movement

Which spare parts fit the ETA 2366 movement? For every part you can see which other calibers use the same part according to the original interchangeability list.

4Parts with interchange data

5Calibers sharing parts

Note: We have compiled this overview to the best of our knowledge and belief, based on the original interchangeability lists of ETA and the original spare-part labels. All information has been carefully checked but is provided without guarantee. Please verify the interchangeability yourself before fitting, especially the height, diameter and execution of the part.

🔧 Interchangeable parts

Part no.	Description	Also fits
430	Click spring	according to original label ETA 2365 ETA 2367 ETA 2369
435	Yoke	according to original label ETA 2360 ETA 2363 ETA 2365 ETA 2367 ETA 2369
445	Setting lever jumper	according to original label ETA 2360 ETA 2363 ETA 2365 ETA 2367 ETA 2369
705C	Escape wheel	according to original label ETA 2360 ETA 2363 ETA 2365 ETA 2367 ETA 2369

Source: original interchangeability lists of ETA (checked transcription) and checked original spare-part labels · as of 2026-10-28. Height / execution: the part fits only in this height or execution.

🌀 Matching mainspring

Mainspring dimensions for ETA 2366 (height × diameter × thickness × length) and matching mainspring in our shop:

ETA 2365 à 2369 Aut: 1.30 × 6.5 × 0.075 × 220 mm (GR 3193-X)

🔗 Movements sharing the most parts

→ All calibers of ETA

❓ Frequently asked questions

Which ETA 2366 spare parts also fit other movements?

For the ETA 2366, 4 part numbers are listed as interchangeable. Together they fit 5 other calibers – the table below shows which part fits which movement.

Which movements share the most parts with the ETA 2366?

The most shared parts: ETA 2365 (4 parts), ETA 2367 (4 parts), ETA 2369 (4 parts).

Which mainspring fits the ETA 2366?

According to the Générale Ressorts catalogue (height × diameter × thickness × length): 1.30 × 6.5 × 0.075 × 220 mm (GR 3193-X, automatic, with welded slipping bridle).