FEF 6665-1 – interchangeable spare parts

FEF 6665-1 movement

Which spare parts fit the FEF 6665-1 movement? For every part you can see which other calibers use the same part according to the original interchangeability list.

3Parts with interchange data
16Calibers sharing parts
Note: We have compiled this overview to the best of our knowledge and belief, based on the original interchangeability lists of FEF 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.DescriptionAlso fits
443/1Setting lever, assembled
according to original label
FEF 5765-1FEF 6630FEF 6631FEF 6632FEF 6633FEF 6664FEF 6665FEF 6700FEF 6701FEF 6710FEF 6711FEF 6764FEF 6765
445Setting lever spring
according to original label
FEF 6660FEF 6662FEF 6664FEF 6665FEF 6764FEF 6765FEF 6765-1
2558Double-toothing hour wheel
Height 212according to original label
FEF 6664FEF 6665FEF 6764FEF 6765FEF 6765-1

Source: original interchangeability lists of FEF (checked transcription) and checked original spare-part labels · as of 2026-10-17. Height / execution: the part fits only in this height or execution.

🔗 Movements sharing the most parts

→ All calibers of FEF

WordPress Cookie Notice by Real Cookie Banner