FHF 2124 – interchangeable spare parts

FHF 2124 movement

Which spare parts fit the FHF 2124 movement? For every part you can see which other calibers use the same part according to the original interchangeability list.

23Parts with interchange data

2Calibers 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
182ISO 20.030	Barrel and cover	Landeron 2124
195ISO 20.060	Barrel arbor	Landeron 2124
201ISO 30.015	Center wheel	Landeron 2124
210ISO 30.025	Third wheel	Landeron 2124
224ISO 30.027.13	Fourth wheel	Landeron 2124
260ISO 31.041	Minute wheel	Landeron 2124
301ISO 40.301	Regulator for flat hairspring	Landeron 2124
311ISO 70.800	Upper cap jewel with end-piece	Landeron 2124
330ISO 70.801	Lower cap jewel with end-piece	Landeron 2124
401ISO 51.010	Winding stem	Landeron 2124
407ISO 31.121	Clutch wheel	Landeron 2124
410ISO 31.120	Winding pinion	Landeron 2124
415ISO 31.020	Ratchet wheel	2nd execution Landeron 2124
420ISO 31.023	Crown wheel	2nd execution Landeron 2124
422ISO 81.067	Crown wheel ring	Landeron 2124
430ISO 61.080	Click spring	Landeron 2124
435ISO 51.050	Yoke	Landeron 2124
440ISO 61.100	Yoke spring	Landeron 2124
443ISO 51.080	Setting lever	Landeron 2124
445	Setting lever spring	according to original label FHF 2126 Landeron 2124
702ISO 30.040.12	Escape wheel and pinion, pivoted, for two end-pieces	Landeron 2124
705ISO 30.040	Escape wheel and pinion	Landeron 2124
710ISO 40.010	Jewelled pallet fork and stat	Landeron 2124

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 2124 (height × diameter × thickness × length) and matching mainspring in our shop:

FHF 2124: 1.90 × 16.0 × 0.18 × 540 mm (GR 5622)

🔗 Movements sharing the most parts

FHF 2126 (1 parts)

→ All calibers of FHF

❓ Frequently asked questions

Which FHF 2124 spare parts also fit other movements?

For the FHF 2124, 23 part numbers are listed as interchangeable. Together they fit 2 other calibers – the table below shows which part fits which movement.

Which movements share the most parts with the FHF 2124?

The most shared parts: FHF 2126 (1 parts).

Which mainspring fits the FHF 2124?

According to the Générale Ressorts catalogue (height × diameter × thickness × length): 1.90 × 16.0 × 0.18 × 540 mm (GR 5622, hand-wound, normal end hook).