FEF 350 – interchangeable spare parts

FEF 350 movement

Which spare parts fit the FEF 350 movement? For every part you can see which other calibers use the same part according to the original interchangeability list.

32Parts 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.	Description	Also fits
182ISO 20.030	Barrel and cover	FEF 380 FEF 380-2 Peseux 350 Peseux 350 Peseux 355 Peseux 380 Peseux 385
195ISO 20.060	Barrel arbor	FEF 380 FEF 380-2 Peseux 350 Peseux 350 Peseux 355 Peseux 380 Peseux 385
206ISO 30.015	Center wheel	FEF 380 FEF 380-2 Peseux 350 Peseux 350 Peseux 355 Peseux 380 Peseux 385
210ISO 30.025	Third wheel	FEF 380 FEF 380-2 Peseux 350 Peseux 350 Peseux 355 Peseux 380 Peseux 385
227ISO 30.027	Sweep second wheel	FEF 380 FEF 380-2 Height 572 FEF 380 FEF 380-2 Peseux 350 Height 572 Peseux 350 Peseux 355 Peseux 380 Peseux 385 Height 597 FEF 380 FEF 380-2 Peseux 350 Height 597 Peseux 350 Peseux 355 Peseux 380 Peseux 385 Height 622 FEF 380 FEF 380-2 Peseux 350 Height 622 Peseux 350 Peseux 355 Peseux 380 Peseux 385
245ISO 31.080	Cannon pinion with clam notch	FEF 380 FEF 380-2 Height 175 FEF 380 FEF 380-2 Height 200 FEF 380 FEF 380-2 Height 200 Peseux 350 Peseux 355 Peseux 380 Peseux 385 Height 225 FEF 380 FEF 380-2 Height 225 Peseux 350 Peseux 355 Peseux 380 Peseux 385 Height 250 FEF 380 FEF 380-2 Height 250 Peseux 350 Peseux 355 Peseux 380 Peseux 385 Height 285 FEF 380 FEF 380-2
255ISO 31.046	Hour wheel	FEF 380 FEF 380-2 Height 100 FEF 380 FEF 380-2 Peseux 350 Height 125 FEF 380 FEF 380-2 Peseux 350 Height 125 Peseux 350 Peseux 355 Peseux 380 Peseux 385 Height 150 FEF 380 FEF 380-2 Peseux 350 Height 150 Peseux 350 Peseux 355 Peseux 380 Peseux 385 Height 175 FEF 380 FEF 380-2 Peseux 350 Height 175 Peseux 350 Peseux 355 Peseux 380 Peseux 385 Height 210 FEF 380 FEF 380-2 Peseux 350
260ISO 31.041	Minute wheel	FEF 380 FEF 380-2 Peseux 350 Peseux 350 Peseux 355 Peseux 380 Peseux 385
301ISO 40.301	Regulator for flat hairspring	2nd execution FEF 380 FEF 380-2 2nd execution Peseux 350 Peseux 380
311ISO 70.800	Upper cap jewel with end-piece	FEF 380 FEF 380-2 Peseux 350 Peseux 350 Peseux 380
330ISO 70.801	Lower cap jewel with end-piece	FEF 86 FEF 130 FEF 133 FEF 150 FEF 170 FEF 190 FEF 210 FEF 250 FEF 290 FEF 310 FEF 380 FEF 380-2
336ISO 70.806	Upper cap-jewel with end-piece, for escape wheel	FEF 380
342ISO 70.881	Bearing plate, jewelled, for sweep second wheel	FEF 380 FEF 380-2
346ISO 70.807	Lower cap jewel with end-piece, f. esc. wheel	FEF 86 FEF 130 FEF 170 FEF 380 FEF 380-2
401ISO 51.010	Winding stem	FEF 380 FEF 380-2 Peseux 350 Peseux 350 Peseux 355 Peseux 380 Peseux 385
407ISO 31.121	Clutch wheel	FEF 380 FEF 380-2 Peseux 350 Peseux 350 Peseux 355 Peseux 380 Peseux 385
410ISO 31.120	Winding pinion	FEF 380 Peseux 350 Peseux 350 Peseux 355 Peseux 380 Peseux 385
415ISO 31.020	Ratchet wheel	FEF 380 FEF 380-2
420ISO 31.023	Crown wheel	FEF 380 FEF 380-2
422ISO 81.067	Crown wheel ring	FEF 380 FEF 380-2 Peseux 350 Peseux 350 Peseux 355 Peseux 380 Peseux 385
425ISO 51.120	Click	2nd execution FEF 380 FEF 380-2 2nd execution Peseux 355 Peseux 385
430ISO 61.080	Click spring	2nd execution FEF 86 FEF 130 FEF 133 FEF 170 FEF 190 FEF 210 FEF 250 FEF 290 FEF 310 FEF 380 FEF 380-2 2nd execution Peseux 355 Peseux 385
435ISO 51.050	Yoke	FEF 380 FEF 380-2 Peseux 350 Peseux 350 Peseux 355 Peseux 380 Peseux 385
440ISO 61.100	Yoke spring	FEF 380 FEF 380-2 Peseux 350 Peseux 350 Peseux 355 Peseux 380 Peseux 385
443ISO 51.080	Setting lever	FEF 380 FEF 380-2 Peseux 350 Peseux 350 Peseux 355 Peseux 380 Peseux 385
443/5443ISO 51.080.06/.01	Setting lever	FEF 380 FEF 380-2 Peseux 350
445ISO 51.090	Setting lever spring	FEF 380 FEF 380-2 Peseux 350 Peseux 350 Peseux 355 Peseux 380 Peseux 385
450ISO 31.100	Setting wheel	FEF 380 FEF 380-2 Peseux 350 Peseux 350 Peseux 355 Peseux 380 Peseux 385
462ISO 10.062	Minute work cock	FEF 380 Peseux 350 Peseux 350 Peseux 355 Peseux 380 Peseux 385
702ISO 30.040.12	Escape wheel and pinion, pivoted, for two end-pieces	FEF 380 FEF 380-2 Peseux 350 Peseux 350 Peseux 355 Peseux 380 Peseux 385
705ISO 30.040	Escape wheel and pinion	FEF 380 FEF 380-2 Peseux 350
710ISO 40.010	Jewelled pallet fork and stat	Peseux 350 1st execution FEF 380 FEF 380-2 Peseux 350

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 350 online:

FEF 350-380

🔗 Movements sharing the most parts

→ All calibers of FEF

❓ Frequently asked questions

Which FEF 350 spare parts also fit other movements?

For the FEF 350, 32 part numbers are listed as interchangeable. Together they fit 16 other calibers – the table below shows which part fits which movement.