FHF 25 – interchangeable spare parts

FHF 25 movement

Which spare parts fit the FHF 25 movement? For every part you can see which other calibers use the same part according to the original interchangeability list.

1Parts with interchange data

8Calibers sharing parts

Note: We have compiled this overview to the best of our knowledge and belief, based on the original interchangeability lists of FHF 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
710ISO 40.010	Jewelled pallet fork and stat	AS 1187 AS 1187N AS 1194 AS 1194N AS 1200 AS 1201 FEF 290 ST 1686

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

🌀 Matching mainspring

Mainspring dimensions for FHF 25 (height × diameter × thickness × length) and matching mainspring in our shop:

FHF 25: 1.60 × 9.0 × 0.10 × 320 mm (GR 4487) · 🛒 1

❓ Frequently asked questions

Which FHF 25 spare parts also fit other movements?

For the FHF 25, 1 part numbers are listed as interchangeable. Together they fit 8 other calibers – the table below shows which part fits which movement.

Which mainspring fits the FHF 25?

According to the Générale Ressorts catalogue (height × diameter × thickness × length): 1.60 × 9.0 × 0.10 × 320 mm (GR 4487, hand-wound, normal end hook).