ST 1051 – interchangeable spare parts

ST 1051 movement

Which spare parts fit the ST 1051 movement? For every part you can see which other calibers use the same part according to the original interchangeability list.

1Parts with interchange data

7Calibers sharing parts

Note: We have compiled this overview to the best of our knowledge and belief, based on the original interchangeability lists of ST 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
407ISO 31.121	Clutch wheel	ST 1800 ST 1801 ST 1802 ST 1803 ST 1940 ST 1941 ST 1950

Source: original interchangeability lists of ST (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 ST

❓ Frequently asked questions

Which ST 1051 spare parts also fit other movements?

For the ST 1051, 1 part numbers are listed as interchangeable. Together they fit 7 other calibers – the table below shows which part fits which movement.