FHF 98 – interchangeable spare parts

FHF 98 movement

Which spare parts fit the FHF 98 movement? For every part you can see which other calibers use the same part according to the original interchangeability list.

24Parts with interchange data

67Calibers 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 98-1 FHF 984 FHF 984-1
195ISO 20.060	Barrel arbor	FHF 98-1 FHF 984 FHF 984-1
206ISO 30.015	Center wheel	FHF 984
210ISO 30.025	Third wheel	FHF 984
227ISO 30.027	Sweep second wheel	FHF 984 Height 518 FHF 984 Height 543 FHF 984
245ISO 31.080	Cannon pinion with clam notch	FHF 98-1 FHF 984 FHF 984-1 Height 180 FHF 98-1 FHF 984 FHF 984-1 Height 205 FHF 98-1 FHF 984 FHF 984-1
255ISO 31.046	Hour wheel	FHF 98-1 FHF 984 FHF 984-1 Height 114 FHF 98-1 FHF 984 FHF 984-1 Height 139 FHF 98-1 FHF 984 FHF 984-1
260ISO 31.041	Minute wheel	FHF 984
307ISO 40.301	Regulator with adjustable stud holder, for flat hairspring	FHF 98-1 FHF 984 FHF 984-1
401ISO 51.010	Winding stem	FHF 98-1 FHF 984 FHF 984-1
407ISO 31.121	Clutch wheel	FHF 98-1 FHF 984 FHF 984-1
410ISO 31.120	Winding pinion	FHF 98-1 FHF 984 FHF 984-1
415ISO 31.020	Ratchet wheel	FHF 98-1 FHF 984 FHF 984-1
420ISO 31.023	Crown wheel	FHF 98-1 FHF 984 FHF 984-1
434ISO 51.120	Clicking spring	FHF 98-1 FHF 984 FHF 984-1 ST 96N
435ISO 51.050	Yoke	FHF 98-1 FHF 984
440ISO 61.100	Yoke spring	FHF 55 FHF 55-2 FHF 55-4 FHF 66 FHF 66-4 FHF 66-4N FHF 66-9 FHF 67 FHF 67-2 FHF 67-2N FHF 67-4 FHF 72 FHF 72-2 FHF 72-2N FHF 72-4 FHF 72-4N FHF 72-6 FHF 72-7 FHF 72-9 FHF 73 FHF 73-2 FHF 73-2N FHF 73-4 FHF 73-4N FHF 74 FHF 74-2 FHF 74-4 FHF 74-4N FHF 98-1 FHF 551 FHF 665 FHF 665-4 FHF 665-4N FHF 665-9 FHF 671 FHF 671-2 FHF 671-2N FHF 675 FHF 675-4 FHF 676 FHF 676-4 FHF 725 FHF 725-4 FHF 725-4N FHF 725-7 FHF 725-9 FHF 729 FHF 729-4N FHF 729-7 FHF 735 FHF 735-4 FHF 735-4N FHF 739 FHF 739-4N FHF 741 FHF 745 FHF 745-4 FHF 745-4N FHF 984 ST 96
443ISO 51.080	Setting lever	FHF 984
443/5443ISO 51.080.06/.01	Setting lever	FHF 984
445ISO 51.090	Setting lever spring	FHF 984 ST 96
450ISO 31.100	Setting wheel	FHF 98-1 FHF 984
462ISO 10.062	Minute work cock	FHF 98-1
705ISO 30.040	Escape wheel and pinion	FHF 98-1 FHF 984 FHF 984-1
710ISO 40.010	Jewelled pallet fork and stat	FEF 6664 FHF 98-1 FHF 692 FHF 984 FHF 984-1 Durowe 69-21 INT.S 69-21 ST 69

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

FHF 98: 1.30 × 11.0 × 0.105 × 420 mm (GR 3274)

📄 Technical document

View the original document for FHF 98 online:

FHF 98-984 – Ø 25.60 mm, height 3.65 mm

🔗 Movements sharing the most parts

→ All calibers of FHF

❓ Frequently asked questions

Which FHF 98 spare parts also fit other movements?

For the FHF 98, 24 part numbers are listed as interchangeable. Together they fit 67 other calibers – the table below shows which part fits which movement.

Which movements share the most parts with the FHF 98?

The most shared parts: FHF 984 (29 parts), FHF 98-1 (21 parts), FHF 984-1 (17 parts).

Which mainspring fits the FHF 98?

According to the Générale Ressorts catalogue (height × diameter × thickness × length): 1.30 × 11.0 × 0.105 × 420 mm (GR 3274, hand-wound, normal end hook).