FEF 371 – interchangeable spare parts

FEF 371 movement

Which spare parts fit the FEF 371 movement? For every part you can see which other calibers use the same part according to the original interchangeability list.

33Parts with interchange data
40Calibers 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
182ISO 20.030Barrel and cover
FEF 370FEF 371NFEF 372FEF 373FEF 6660FEF 6662FEF 6664FEF 6665FEF 6764FEF 6765
195ISO 20.060Barrel arbor
FEF 370FEF 371NFEF 372
1st execution
FEF 370FEF 371NFEF 372FEF 373
201ISO 30.015Center wheel
FEF 370FEF 372FEF 373
210ISO 30.025Third wheel
FEF 370FEF 372FEF 373
220ISO 30.027Fourth wheel
FEF 370FEF 372FEF 373
240ISO 31.080Cannon-pinion
FEF 270FEF 370FEF 371NFEF 372FEF 373FEF 430FEF 1270FEF 6600FEF 6620FEF 6621FEF 6630FEF 6631FEF 6632FEF 6633FEF 6650FEF 6660FEF 6662FEF 6700FEF 6701
Height 195
FEF 270FEF 370FEF 371NFEF 372FEF 373FEF 430FEF 1270FEF 6600FEF 6620FEF 6621FEF 6630FEF 6631FEF 6632FEF 6633FEF 6650FEF 6660FEF 6662FEF 6700FEF 6701
Height 210
FEF 270FEF 370FEF 371NFEF 372FEF 373FEF 430FEF 1270FEF 6600FEF 6620FEF 6621FEF 6630FEF 6631FEF 6632FEF 6633FEF 6650FEF 6660FEF 6662FEF 6700FEF 6701
Height 220
FEF 270FEF 370FEF 371NFEF 372FEF 373FEF 430FEF 1270FEF 6600FEF 6620FEF 6621FEF 6630FEF 6631FEF 6632FEF 6633FEF 6650FEF 6660FEF 6662FEF 6700FEF 6701
Height 245
FEF 270FEF 370FEF 371NFEF 372FEF 373FEF 430FEF 1270FEF 6600FEF 6620FEF 6621FEF 6630FEF 6631FEF 6632FEF 6633FEF 6650FEF 6660FEF 6662FEF 6700FEF 6701
Height 270
FEF 270FEF 370FEF 371NFEF 372FEF 373FEF 430FEF 1270FEF 6600FEF 6620FEF 6621FEF 6630FEF 6631FEF 6632FEF 6633FEF 6650FEF 6660FEF 6662FEF 6700FEF 6701
Height 295
FEF 270FEF 370FEF 371NFEF 372FEF 373FEF 430FEF 1270FEF 6600FEF 6620FEF 6621FEF 6630FEF 6631FEF 6632FEF 6633FEF 6650FEF 6660FEF 6662FEF 6700FEF 6701
Height 320
FEF 270FEF 370FEF 371NFEF 372FEF 373FEF 430FEF 1270FEF 6600FEF 6620FEF 6621FEF 6630FEF 6631FEF 6632FEF 6633FEF 6650FEF 6660FEF 6662FEF 6700FEF 6701
Height 345
FEF 270FEF 370FEF 371NFEF 372FEF 373FEF 430FEF 1270FEF 6600FEF 6620FEF 6621FEF 6630FEF 6631FEF 6632FEF 6633FEF 6650FEF 6660FEF 6662FEF 6700FEF 6701
Height 370
FEF 270FEF 370FEF 371NFEF 372FEF 373FEF 430FEF 1270FEF 6600FEF 6620FEF 6621FEF 6630FEF 6631FEF 6632FEF 6633FEF 6650FEF 6660FEF 6662FEF 6700FEF 6701
Height 395
FEF 270FEF 370FEF 371NFEF 372FEF 373FEF 430FEF 1270FEF 6600FEF 6620FEF 6621FEF 6630FEF 6631FEF 6632FEF 6633FEF 6650FEF 6660FEF 6662FEF 6700FEF 6701
Height 420
FEF 270FEF 370FEF 371NFEF 372FEF 373FEF 430FEF 1270FEF 6600FEF 6620FEF 6621FEF 6630FEF 6631FEF 6632FEF 6633FEF 6650FEF 6660FEF 6662FEF 6700FEF 6701
Height 445
FEF 270FEF 370FEF 371NFEF 372FEF 373FEF 430FEF 1270FEF 6600FEF 6620FEF 6621FEF 6630FEF 6631FEF 6632FEF 6633FEF 6650FEF 6660FEF 6662FEF 6700FEF 6701
Height 595
FEF 270FEF 370FEF 371NFEF 372FEF 373FEF 430FEF 1270FEF 6600FEF 6620FEF 6621FEF 6630FEF 6631FEF 6632FEF 6633FEF 6650FEF 6660FEF 6662FEF 6700FEF 6701
250ISO 31.046Hour wheel
FEF 270FEF 370FEF 371NFEF 372FEF 373FEF 1270FEF 6660FEF 6662
Height 106
FEF 270FEF 370FEF 371NFEF 372FEF 373FEF 1270FEF 6660FEF 6662
Height 121
FEF 270FEF 370FEF 371NFEF 372FEF 373FEF 1270FEF 6660FEF 6662
Height 131
FEF 270FEF 370FEF 371NFEF 372FEF 373FEF 1270FEF 6660FEF 6662
Height 156
FEF 270FEF 370FEF 371NFEF 372FEF 373FEF 1270FEF 6660FEF 6662
Height 181
FEF 270FEF 370FEF 371NFEF 372FEF 373FEF 1270FEF 6660FEF 6662
Height 206
FEF 270FEF 370FEF 371NFEF 372FEF 373FEF 1270FEF 6660FEF 6662
Height 231
FEF 270FEF 370FEF 371NFEF 372FEF 373FEF 1270FEF 6660FEF 6662
Height 256
FEF 270FEF 370FEF 371NFEF 372FEF 373FEF 1270FEF 6660FEF 6662
Height 281
FEF 270FEF 370FEF 371NFEF 372FEF 373FEF 1270FEF 6660FEF 6662
Height 306
FEF 270FEF 370FEF 371NFEF 372FEF 373FEF 1270FEF 6660FEF 6662
Height 331
FEF 270FEF 370FEF 371NFEF 372FEF 373FEF 1270FEF 6660FEF 6662
Height 356
FEF 270FEF 370FEF 371NFEF 372FEF 373FEF 1270FEF 6660FEF 6662
Height 506
FEF 270FEF 370FEF 371NFEF 372FEF 373FEF 1270FEF 6660FEF 6662
260ISO 31.041Minute wheel
FEF 270FEF 370FEF 371NFEF 372FEF 373FEF 1270FEF 6660FEF 6662FEF 6664FEF 6665FEF 6764FEF 6765
301ISO 40.301Regulator for flat hairspring
FEF 370FEF 371NFEF 372FEF 373
307ISO 40.301Regulator with adjustable stud holder, for flat hairspring
FEF 370FEF 371NFEF 372FEF 373
311ISO 70.800Upper cap jewel with end-piece
FEF 86FEF 130FEF 133FEF 170FEF 250FEF 270FEF 370FEF 400FEF 401FEF 1270
330ISO 70.801Lower cap jewel with end-piece
FEF 370FEF 430FEF 6600FEF 6620FEF 6621FEF 6650
336ISO 70.806Upper cap-jewel with end-piece, for escape wheel
FEF 150FEF 270FEF 370FEF 371NFEF 372FEF 373FEF 430FEF 1270FEF 6650
2nd execution
FEF 150FEF 250FEF 270FEF 370FEF 371NFEF 372FEF 373FEF 430FEF 1270FEF 6650
346ISO 70.807Lower cap jewel with end-piece, f. esc. wheel
FEF 370FEF 371NFEF 372FEF 373FEF 430FEF 6600FEF 6620FEF 6621FEF 6650FEF 6662
401ISO 51.010Winding stem
FEF 370FEF 371NFEF 372FEF 373FEF 6660FEF 6662
407ISO 31.121Clutch wheel
FEF 165FEF 166FEF 270FEF 370FEF 371NFEF 372FEF 373FEF 430FEF 1270FEF 6600FEF 6620FEF 6621FEF 6630FEF 6631FEF 6640FEF 6650FEF 6660FEF 6662FEF 6664FEF 6700FEF 6701FEF 6710FEF 6711FEF 6764
410ISO 31.120Winding pinion
1st execution
FEF 270FEF 370FEF 371NFEF 372FEF 373FEF 430FEF 1270FEF 6600FEF 6620FEF 6621FEF 6650FEF 6660FEF 6662
2nd execution
FEF 270FEF 370FEF 371NFEF 372FEF 373FEF 430FEF 6600FEF 6620FEF 6621FEF 6630FEF 6631FEF 6632FEF 6633FEF 6650FEF 6660FEF 6662FEF 6664FEF 6665FEF 6700FEF 6701FEF 6710FEF 6711FEF 6764FEF 6765
415ISO 31.020Ratchet wheel
FEF 370FEF 371NFEF 372FEF 373FEF 6660FEF 6662FEF 6664FEF 6665FEF 6764FEF 6765
420ISO 31.023Crown wheel
FEF 370FEF 371NFEF 372FEF 373FEF 400FEF 401FEF 6660FEF 6662FEF 6680FEF 6686
423ISO 81.136Crown wheel core
FEF 370FEF 371NFEF 372FEF 373FEF 400FEF 401FEF 6660FEF 6662FEF 6680FEF 6686
425ISO 51.120Click
FEF 270FEF 370FEF 371NFEF 372FEF 373FEF 400FEF 401FEF 430FEF 1270FEF 6600FEF 6620FEF 6621FEF 6630FEF 6631FEF 6650FEF 6660FEF 6662FEF 6664FEF 6665FEF 6680FEF 6686FEF 6700FEF 6701FEF 6710FEF 6711FEF 6764FEF 6765
430ISO 61.080Click spring
FEF 165FEF 166FEF 270FEF 370FEF 371NFEF 372FEF 373FEF 400FEF 401FEF 430FEF 1270FEF 6600FEF 6620FEF 6621FEF 6630FEF 6631FEF 6640FEF 6650FEF 6660FEF 6662FEF 6664FEF 6665FEF 6680FEF 6686FEF 6700FEF 6701FEF 6710FEF 6711FEF 6764FEF 6765
435ISO 51.050Yoke
FEF 270FEF 370FEF 371NFEF 372FEF 373FEF 1270FEF 6660FEF 6662FEF 6664FEF 6665FEF 6764FEF 6765
440ISO 61.100Yoke spring
FEF 150FEF 270FEF 370FEF 371NFEF 372FEF 373FEF 1270FEF 6660FEF 6662FEF 6664FEF 6665FEF 6764FEF 6765
443ISO 51.080Setting lever
FEF 270FEF 370FEF 371NFEF 372FEF 373FEF 1270FEF 6600FEF 6620FEF 6621
443/5443ISO 51.080.06/.01Setting lever
FEF 270FEF 370FEF 371NFEF 372FEF 373FEF 1270FEF 6600FEF 6620FEF 6621
445ISO 51.090Setting lever spring
FEF 370FEF 371NFEF 372FEF 373
450ISO 31.100Setting wheel
FEF 165FEF 166FEF 270FEF 370FEF 371NFEF 372FEF 373FEF 430FEF 1270FEF 6600FEF 6620FEF 6621FEF 6630FEF 6631FEF 6640FEF 6650FEF 6660FEF 6662FEF 6664FEF 6700FEF 6701FEF 6710FEF 6711FEF 6764
702ISO 30.040.12Escape wheel and pinion, pivoted, for two end-pieces
FEF 370FEF 371NFEF 372FEF 373
703ISO 30.040.11Escape wheel and pinion, for lower end-piece
FEF 370FEF 371NFEF 372FEF 373
704ISO 30.040.10Escape wheel and pinion, for upper end-piece
FEF 370FEF 371NFEF 372FEF 373
705ISO 30.040Escape wheel and pinion
FEF 370FEF 371NFEF 372FEF 373
710ISO 40.010Jewelled pallet fork and stat
1st execution
FEF 370
3rd execution
FEF 270 2eFEF 372FEF 373FEF 6680FEF 6681FEF 6686FEF 6687

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

📄 Technical document

View the original document for FEF 371 online:

🔗 Movements sharing the most parts

→ All calibers of FEF

❓ Frequently asked questions

Which FEF 371 spare parts also fit other movements?

For the FEF 371, 33 part numbers are listed as interchangeable. Together they fit 40 other calibers – the table below shows which part fits which movement.

Which movements share the most parts with the FEF 371?

The most shared parts: FEF 370 (62 parts), FEF 372 (60 parts), FEF 373 (59 parts).

🛠️ For the workshop

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