ETA 1100 – interchangeable spare parts

ETA 1100 movement

Which spare parts fit the ETA 1100 movement? For every part you can see which other calibers use the same part according to the original interchangeability list.

19Parts with interchange data
29Calibers 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.

🛒 Spare parts for ETA 1100 in our shop

🔧 Interchangeable parts

Part no.DescriptionAlso fits
311ISO 70.800Upper cap jewel with end-piece, f. balance
330ISO 70.801Lower cap jewel with end-piece, f. balance
336ISO 70.806Upper cap-jewel with end-piece, for escape wheel
342ISO 70.881Bearing-plate, for sweep-second
343ISO 70.891Bearing plate, for sweep second wheel
346ISO 70.807Lower cap jewel with end-piece, f. esc. wh.
401ISO 51.010Winding stem
407ISO 31.121Sliding pinion
410ISO 31.120Winding pinion
415ISO 31.020Ratchet wheel
420ISO 31.023Crown wheel
422ISO 81.067Crown wheel ring
425ISO 51.120Click
430ISO 61.080Click spring
435ISO 51.050Yoke
440ISO 61.100Yoke spring
443ISO 51.080Setting lever
443/5443ISO 51.080.06/.01Setting lever
702CEscape wheel and pinion, pivoted, for two end-pieces
according to original label

Source: original interchangeability lists of ETA (checked transcription) and checked original spare-part labels · as of 2026-10-18. Height / execution: the part fits only in this height or execution.

🌀 Matching mainspring

Mainspring dimensions for ETA 1100 (height × diameter × thickness × length) and matching mainspring in our shop:

🔗 Movements sharing the most parts

→ All calibers of ETA

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