FHF 55-4 – interchangeable spare parts
FHF 55-4 movement
Which spare parts fit the FHF 55-4 movement? For every part you can see which other calibers use the same part according to the original interchangeability list.
🔧 Interchangeable parts
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 55-4 (height × diameter × thickness × length) and matching mainspring in our shop:
📄 Technical document
View the original document for FHF 55-4 online:
🔗 Movements sharing the most parts
- FHF 55 (32 parts)
- FHF 551 (29 parts)
- FHF 55-2 (27 parts)
- FHF 72-4 (23 parts)
- FHF 72-4N (23 parts)
- FHF 72-9 (22 parts)
- FHF 725-4 (22 parts)
- FHF 725-4N (22 parts)
- FHF 729-4N (22 parts)
- FHF 72 (21 parts)
- FHF 725-9 (21 parts)
- FHF 72-7 (20 parts)
- FHF 725 (20 parts)
- FHF 729 (20 parts)
- FHF 67-4 (20 parts)
- FHF 675-4 (20 parts)
❓ Frequently asked questions
Which FHF 55-4 spare parts also fit other movements?
For the FHF 55-4, 41 part numbers are listed as interchangeable. Together they fit 111 other calibers – the table below shows which part fits which movement.
Which movements share the most parts with the FHF 55-4?
The most shared parts: FHF 55 (32 parts), FHF 551 (29 parts), FHF 55-2 (27 parts).
Which mainspring fits the FHF 55-4?
According to the Générale Ressorts catalogue (height × diameter × thickness × length): 1.20 × 9.0 × 0.11 × 300 mm (GR 2949, hand-wound, normal end hook).
🛠️ For the workshop
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