FHF 374 – interchangeable spare parts

FHF 374 movement

Which spare parts fit the FHF 374 movement? For every part you can see which other calibers use the same part according to the original interchangeability list.

31Parts with interchange data

21Calibers 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	FHF 37 FHF 378 INT.S 37
195ISO 20.060	Barrel arbor	FHF 37 FHF 371 FHF 372 FHF 373 FHF 378 INT.S 37
206ISO 30.015	Center wheel	FHF 37 FHF 378 INT.S 37
210ISO 30.025	Third wheel	FHF 37 FHF 378 INT.S 37
227ISO 30.027	Sweep second wheel	FHF 37 Height 546 FHF 37 INT.S 37 Height 571 FHF 37 INT.S 37 Height 571according to original label FHF 37 INT.S 37 INT.S 374 Height 621 FHF 37 FHF 378 INT.S 37 Height 646 FHF 37 FHF 378 INT.S 37
245ISO 31.080	Cannon pinion with clam notch	FHF 37 FHF 371 FHF 372 Height 173 FHF 37 FHF 371 FHF 372 INT.S 37 Height 198 FHF 37 FHF 371 FHF 372 INT.S 37 Height 248 FHF 37 FHF 371 FHF 372 FHF 373 FHF 378 INT.S 37 Height 273 FHF 37 FHF 371 FHF 372 FHF 373 FHF 378 INT.S 37
255ISO 31.046	Hour wheel	FHF 37 FHF 371 FHF 372 Height 120 FHF 37 FHF 371 FHF 372 INT.S 37 Height 145 FHF 37 FHF 371 FHF 372 INT.S 37 Height 198 FHF 37 FHF 371 FHF 372 FHF 373 FHF 378 INT.S 37 Height 223 FHF 37 FHF 371 FHF 372 FHF 373 FHF 378 INT.S 37
260ISO 31.041	Minute wheel	FHF 37 FHF 371 FHF 372 FHF 373 FHF 378 INT.S 37
307ISO 40.301	Regulator with adjustable stud holder, for flat hairspring	FHF 37 FHF 100.001 FHF 100.151 FHF 100.161 FHF 371 FHF 372 FHF 373 FHF 378 INT.S 37 according to original label FHF 37 FHF 371 FHF 372 FHF 373 FHF 378 INT.S 37 INT.S 371 INT.S 372 INT.S 373 INT.S 374 INT.S 378
311ISO 70.800	Upper cap jewel with end-piece	FHF 37 FHF 371 FHF 372 FHF 373 FHF 378 INT.S 37
330ISO 70.801	Lower cap jewel with end-piece	FHF 37 FHF 371 FHF 372 FHF 373 FHF 378 INT.S 37
401ISO 51.010	Winding stem	FHF 37 FHF 371 FHF 372 FHF 373 FHF 378 INT.S 37
407ISO 31.121	Clutch wheel	FHF 37 FHF 371 FHF 372 FHF 373 FHF 378 INT.S 37
410ISO 31.120	Winding pinion	FHF 37 FHF 371 FHF 372 FHF 373 FHF 378 INT.S 37
415ISO 31.020	Ratchet wheel	FHF 37 FHF 371 FHF 372 FHF 373 FHF 378 INT.S 37 according to original label FHF 37 FHF 371 FHF 372 FHF 373 INT.S 378
420ISO 31.023	Crown wheel	FHF 37 FHF 371 FHF 372 FHF 373 FHF 378 INT.S 37
425ISO 51.120	Click	FHF 37 FHF 90-4 FHF 90-5 FHF 90-9 FHF 371 FHF 372 FHF 373 FHF 378 FHF 905 FHF 908 FHF 909 INT.S 37
430ISO 61.080	Click spring	FHF 37 FHF 90-4 FHF 90-5 FHF 90-9 FHF 371 FHF 372 FHF 373 FHF 378 FHF 905 FHF 908 FHF 909 INT.S 37
435ISO 51.050	Yoke	FHF 37 FHF 371 FHF 372 FHF 373 FHF 378
440ISO 61.100	Yoke spring	FHF 37 FHF 371 FHF 372 FHF 373 FHF 378
443/1ISO 51.080.06	Setting lever, assembled	FHF 37 FHF 371 FHF 372 FHF 373 FHF 378 INT.S 37 according to original label FHF 37 FHF 371 FHF 372 FHF 373 FHF 378 INT.S 37 INT.S 371 INT.S 372 INT.S 373 INT.S 374 INT.S 378
450ISO 31.100	Setting wheel	FHF 37 FHF 371 FHF 372 FHF 373 FHF 378 INT.S 37
482ISO 61.092	Setting lever return-spring	FHF 372 FHF 373 FHF 378 INT.S 374 INT.S 372 INT.S 373 INT.S 374 INT.S 378
705ISO 30.040	Escape wheel and pinion	FHF 37 FHF 378 INT.S 37
710ISO 40.010	Jewelled pallet fork and stat	AS 1393 FHF 37 FHF 371 FHF 372 FHF 373 FHF 378 INT.S 37
2535ISO 13.105	Date indicator guard	FHF 372 INT.S 374 INT.S 372 INT.S 374
2543ISO 33.011	Intermediate date wheel	FHF 378 INT.S 374 INT.S 374 INT.S 378
2556/1ISO 33.020.06	Date indicator driving wheel	FHF 378 INT.S 374 INT.S 374 INT.S 378
2557/1ISO 91.440	Date indicator, transferred	FHF 372 INT.S 374 INT.S 372 INT.S 374
2575ISO 63.030	Date jumper spring	FHF 372 FHF 373 FHF 378
2576ISO 53.080	Date jumper, mounted	FHF 372 FHF 373 FHF 378 INT.S 374 INT.S 372 INT.S 373 INT.S 374 INT.S 378

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

FHF 374: 1.40 × 7.5 × 0.085 × 260 mm (GR 3615) · 🛒 1

📄 Technical document

View the original document for FHF 374 online:

FHF 37-374-378 – Ø 19.40 mm

🔗 Movements sharing the most parts

→ All calibers of FHF

❓ Frequently asked questions

Which FHF 374 spare parts also fit other movements?

For the FHF 374, 31 part numbers are listed as interchangeable. Together they fit 21 other calibers – the table below shows which part fits which movement.

Which movements share the most parts with the FHF 374?

The most shared parts: FHF 37 (40 parts), FHF 372 (35 parts), FHF 378 (34 parts).

Which mainspring fits the FHF 374?

According to the Générale Ressorts catalogue (height × diameter × thickness × length): 1.40 × 7.5 × 0.085 × 260 mm (GR 3615, hand-wound, normal end hook).