FHF 745 – interchangeable spare parts
FHF 745 movement
Which spare parts fit the FHF 745 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 745 (height × diameter × thickness × length) and matching mainspring in our shop:
🔗 Movements sharing the most parts
❓ Frequently asked questions
Which FHF 745 spare parts also fit other movements?
For the FHF 745, 34 part numbers are listed as interchangeable. Together they fit 102 other calibers – the table below shows which part fits which movement.
Which movements share the most parts with the FHF 745?
The most shared parts: FHF 74 (49 parts), FHF 74-4 (49 parts), FHF 745-4 (49 parts).
Which mainspring fits the FHF 745?
According to the Générale Ressorts catalogue (height × diameter × thickness × length): 1.60 × 10.5 × 0.12 × 340 mm (GR 4538, hand-wound, normal end hook).
🛠️ For the workshop
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