FHF 745-4N – interchangeable spare parts
FHF 745-4N movement
Which spare parts fit the FHF 745-4N 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 745-4N (height × diameter × thickness × length) and matching mainspring in our shop:
🔗 Movements sharing the most parts
- FHF 74-4N (55 parts)
- FHF 74-4 (53 parts)
- FHF 745-4 (53 parts)
- FHF 74 (49 parts)
- FHF 745 (49 parts)
- FHF 741 (45 parts)
- FHF 74-2 (34 parts)
- FHF 73-4N (24 parts)
- FHF 735-4N (24 parts)
- FHF 739-4N (23 parts)
- FHF 73-4 (20 parts)
- FHF 735-4 (20 parts)
- FHF 72-4N (18 parts)
- FHF 725-4N (18 parts)
- FHF 729-4N (16 parts)
- FHF 67 (16 parts)
❓ Frequently asked questions
Which FHF 745-4N spare parts also fit other movements?
For the FHF 745-4N, 42 part numbers are listed as interchangeable. Together they fit 104 other calibers – the table below shows which part fits which movement.
Which movements share the most parts with the FHF 745-4N?
The most shared parts: FHF 74-4N (55 parts), FHF 74-4 (53 parts), FHF 745-4 (53 parts).
Which mainspring fits the FHF 745-4N?
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
Kienzle Watch Key (Winding Key) for Kienzle Movement 42119,90 € incl. VAT *View item ›
Watch Gasket Hytrel I-Ring Seal for Flat Round Mineral Crystals 16-40 mm, H: 0.6, 0.8, 0.85, 1.25, 1.7 mm5,95 € – 9,95 € incl. VAT *View item ›
Red Teflon Hard Gasket For Watch Caseback Multi Size Listing Ø 16-42. Suitable for many brand watches such as Omega, Tissot, Junghans5,95 € – 7,95 € incl. VAT *View item ›