FEF 6870 – interchangeable spare parts

FEF 6870 movement

Which spare parts fit the FEF 6870 movement? For every part you can see which other calibers use the same part according to the original interchangeability list.

26Parts with interchange data

15Calibers 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 6876
195ISO 20.060	Barrel arbor	FEF 6670 FEF 6676 FEF 6677 FEF 6876
201ISO 30.015	Center wheel	FEF 6876
210ISO 30.025	Third wheel	FEF 6876
224ISO 30.027.13	Fourth wheel	FEF 6876
240ISO 31.080	Cannon-pinion	FEF 6670 FEF 6676 FEF 6876 Height 250 FEF 6670 FEF 6676 FEF 6876 Height 275 FEF 6670 FEF 6676 FEF 6876 Height 300 FEF 6670 FEF 6676 FEF 6876 Height 325 FEF 6670 FEF 6676 FEF 6876
250ISO 31.046	Hour wheel	FEF 6670 FEF 6676 FEF 6876 Height 130 FEF 6670 FEF 6676 FEF 6876 Height 155 FEF 6670 FEF 6676 FEF 6876 Height 180 FEF 6670 FEF 6676 FEF 6876 Height 205 FEF 6670 FEF 6676 FEF 6876
260ISO 31.041	Minute wheel	FEF 6670 FEF 6676 FEF 6677 FEF 6876
307ISO 40.301	Regulator with adjustable stud holder, for flat hairspring	FEF 6670 FEF 6676 FEF 6677 FEF 6876
311ISO 70.800	Upper cap jewel with end-piece	FEF 6670 FEF 6676 FEF 6677 FEF 6680 FEF 6681 FEF 6686 FEF 6687 FEF 6876
330ISO 70.801	Lower cap jewel with end-piece	FEF 6670 FEF 6676 FEF 6677 FEF 6680 FEF 6681 FEF 6686 FEF 6687 FEF 6876
401ISO 51.010	Winding stem	FEF 6670 FEF 6676 FEF 6677 FEF 6876
407ISO 31.121	Clutch wheel	FEF 6670 FEF 6676 FEF 6677 FEF 6876
410ISO 31.120	Winding pinion	FEF 6670 FEF 6676 FEF 6677 FEF 6876
415ISO 31.020	Ratchet wheel	FEF 6670 FEF 6676 FEF 6677 FEF 6876
420ISO 31.023	Crown wheel	FEF 6670 FEF 6676 FEF 6677 FEF 6876
422ISO 81.067	Crown wheel ring	FEF 6664 FEF 6665 FEF 6670 FEF 6676 FEF 6677 FEF 6681 FEF 6687 FEF 6764 FEF 6765 FEF 6876
425ISO 51.120	Click	FEF 6670 FEF 6676 FEF 6677 FEF 6876
430ISO 61.080	Click spring	FEF 6670 FEF 6676 FEF 6677 FEF 6876
435ISO 51.050	Yoke	FEF 6670 FEF 6676 FEF 6677 FEF 6876
440ISO 61.100	Yoke spring	FEF 6670 FEF 6676 FEF 6677 FEF 6876
443/1ISO 51.080.06	Setting lever, assembled	FEF 6670 FEF 6676 FEF 6677 FEF 6876
445ISO 51.090	Setting lever spring	FEF 6670 FEF 6676 FEF 6677 FEF 6876
450ISO 31.100	Setting wheel	FEF 6670 FEF 6676 FEF 6677 FEF 6876
705ISO 30.040	Escape wheel and pinion	FEF 6876
710ISO 40.010	Jewelled pallet fork and stat	FEF 6660 FEF 6662 FEF 6670 FEF 6676 FEF 6677 FEF 6876 Peseux 7060

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 6870 online:

FEF 6870-6876-6877 – Ø 19.40 mm

🔗 Movements sharing the most parts

→ All calibers of FEF

❓ Frequently asked questions

Which FEF 6870 spare parts also fit other movements?

For the FEF 6870, 26 part numbers are listed as interchangeable. Together they fit 15 other calibers – the table below shows which part fits which movement.