ETA 945.731 – interchangeable spare parts

ETA 945.731 movement

Which spare parts fit the ETA 945.731 movement? For every part you can see which other calibers use the same part according to the original interchangeability list.

8Parts 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
4000ISO 10.513	Electronic module	ETA 945.831 ETA 945.832
4160ISO 20.780	Connection, for case	ETA 945.832
4265ISO 40.660		ETA 945.831 ETA 945.832 ETA 9360 ETA 9361 ETA 9362
4363ISO 80.050		ETA 945.831 ETA 945.832
4400ISO 51.600	Battery clamp	ETA 945.831 ETA 945.832
4413ISO 20.700		ETA 945.831 ETA 945.832
4820ISO 56.520	Connector	ETA 945.832
4929/1ISO 20.570.18	Battery	ETA 945.831 ETA 945.832

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.

🔗 Movements sharing the most parts

→ All calibers of ETA

❓ Frequently asked questions

Which ETA 945.731 spare parts also fit other movements?

For the ETA 945.731, 8 part numbers are listed as interchangeable. Together they fit 5 other calibers – the table below shows which part fits which movement.