Felsa 4452 – interchangeable spare parts

Felsa 4452 movement

Which spare parts fit the Felsa 4452 movement? For every part you can see which other calibers use the same part according to the original interchangeability list.

34Parts with interchange data
9Calibers sharing parts
Note: We have compiled this overview to the best of our knowledge and belief, based on the original interchangeability lists of Felsa 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.DescriptionAlso fits
182ISO 20.030Barrel and cover
Felsa 4450Felsa 4456Felsa 4550Felsa 4552
195ISO 20.060Barrel arbor
Felsa 4450Felsa 4456Felsa 4460Felsa 4462Felsa 4466Felsa 4550Felsa 4552Felsa 4560Felsa 4562
206ISO 30.015Center wheel
Felsa 4450Felsa 4456Felsa 4460Felsa 4462Felsa 4466Felsa 4550Felsa 4552Felsa 4560Felsa 4562
210ISO 30.025Third wheel
Felsa 4450Felsa 4456Felsa 4460Felsa 4462Felsa 4466Felsa 4550Felsa 4552Felsa 4560Felsa 4562
227ISO 30.027Sweep second wheel
Felsa 4450Felsa 4460Felsa 4462
Height 499
Felsa 4450Felsa 4460Felsa 4462
Height 524
Felsa 4450Felsa 4460Felsa 4462
Height 549
Felsa 4450Felsa 4460Felsa 4462
245ISO 31.080Cannon pinion with clam notch
Felsa 4450Felsa 4460Felsa 4462Felsa 4550Felsa 4552Felsa 4560Felsa 4562
Height 175
Felsa 4450Felsa 4460Felsa 4462Felsa 4550Felsa 4552Felsa 4560Felsa 4562
Height 200
Felsa 4450Felsa 4460Felsa 4462Felsa 4550Felsa 4552Felsa 4560Felsa 4562
Height 225
Felsa 4450Felsa 4460Felsa 4462Felsa 4550Felsa 4552Felsa 4560Felsa 4562
255ISO 31.046Hour wheel
Felsa 4450Felsa 4460Felsa 4462Felsa 4550Felsa 4552Felsa 4560Felsa 4562
Height 115
Felsa 4450Felsa 4460Felsa 4462Felsa 4550Felsa 4552Felsa 4560Felsa 4562
Height 140
Felsa 4450Felsa 4460Felsa 4462Felsa 4550Felsa 4552Felsa 4560Felsa 4562
Height 165
Felsa 4450Felsa 4460Felsa 4462Felsa 4550Felsa 4552Felsa 4560Felsa 4562
260ISO 31.041Minute wheel
Felsa 4450Felsa 4456Felsa 4460Felsa 4462Felsa 4466Felsa 4550Felsa 4552Felsa 4560Felsa 4562
307ISO 40.301Regulator with adjustable stud holder, for flat hairspring
Felsa 4450Felsa 4456Felsa 4460Felsa 4462Felsa 4466Felsa 4550Felsa 4552Felsa 4560Felsa 4562
311ISO 70.800Upper cap jewel with end-piece
Felsa 4450Felsa 4456Felsa 4460Felsa 4462Felsa 4466Felsa 4550Felsa 4552Felsa 4560Felsa 4562
330ISO 70.801Lower cap jewel with end-piece
Felsa 4450Felsa 4456Felsa 4460Felsa 4462Felsa 4466Felsa 4550Felsa 4552Felsa 4560Felsa 4562
336ISO 70.806Upper cap-jewel with end-piece, for escape wheel
Felsa 4450Felsa 4456Felsa 4550Felsa 4552
346ISO 70.807Lower cap jewel with end-piece, f. esc. wheel
Felsa 4450Felsa 4456Felsa 4550Felsa 4552
401ISO 51.010Winding stem
Felsa 4450Felsa 4456Felsa 4460Felsa 4462Felsa 4466Felsa 4550Felsa 4552Felsa 4560Felsa 4562
407ISO 31.121Clutch wheel
Felsa 4450Felsa 4456Felsa 4460Felsa 4462Felsa 4466Felsa 4550Felsa 4552Felsa 4560Felsa 4562
410Winding pinion
Felsa 4450Felsa 4456Felsa 4460Felsa 4462Felsa 4466Felsa 4550Felsa 4552Felsa 4560Felsa 4562
415ISO 31.020Ratchet wheel
Felsa 4450Felsa 4456Felsa 4460Felsa 4462Felsa 4466Felsa 4550Felsa 4552Felsa 4560Felsa 4562
420ISO 31.023Crown wheel
Felsa 4450Felsa 4456Felsa 4460Felsa 4462Felsa 4466Felsa 4550Felsa 4552Felsa 4560Felsa 4562
423ISO 81.136Crown wheel core
Felsa 4450Felsa 4456Felsa 4460Felsa 4462Felsa 4466Felsa 4550Felsa 4552Felsa 4560Felsa 4562
425ISO 51.120Click
Felsa 4450Felsa 4456Felsa 4460Felsa 4462Felsa 4466Felsa 4550Felsa 4552Felsa 4560Felsa 4562
430ISO 61.080Click spring
Felsa 4450Felsa 4456Felsa 4550Felsa 4552
435ISO 51.050Yoke
Felsa 4450Felsa 4456Felsa 4460Felsa 4462Felsa 4466Felsa 4550Felsa 4552Felsa 4560Felsa 4562
440ISO 61.100Yoke spring
Felsa 4450Felsa 4456Felsa 4550Felsa 4552
443ISO 51.080Setting lever
Felsa 4450Felsa 4456Felsa 4460Felsa 4462Felsa 4466Felsa 4550Felsa 4552Felsa 4560Felsa 4562
443/5443ISO 51.080.06/.01Setting lever
Felsa 4450Felsa 4456Felsa 4460Felsa 4462Felsa 4466Felsa 4550Felsa 4552Felsa 4560Felsa 4562
445ISO 51.090Setting lever spring
Felsa 4450Felsa 4456Felsa 4460Felsa 4462Felsa 4466Felsa 4550Felsa 4552Felsa 4560Felsa 4562
450ISO 31.100Setting wheel
Felsa 4450Felsa 4456Felsa 4460Felsa 4462Felsa 4466Felsa 4550Felsa 4552Felsa 4560Felsa 4562
702ISO 30.040.12Escape wheel and pinion, pivoted, for two end-pieces
Felsa 4450Felsa 4456
2535ISO 13.105Date indicator guard
Felsa 4462Felsa 4552Felsa 4562
2543/1ISO 33.011.06Intermediate date wheel
Felsa 4462Felsa 4552Felsa 4562
2556ISO 33.020Date indicator driving wheel
Felsa 4462Felsa 4552Felsa 4562
2557/1ISO 91.440Date indicator, transferred
Felsa 4462Felsa 4552Felsa 4562
2575ISO 63.030Date jumper spring
Felsa 4456Felsa 4462Felsa 4466Felsa 4552Felsa 4562
2576ISO 53.080Date jumper, mounted
Felsa 4456Felsa 4462Felsa 4466Felsa 4552Felsa 4562

Source: original interchangeability lists of Felsa (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 Felsa 4452 (height × diameter × thickness × length) and matching mainspring in our shop:

📄 Technical document

View the original document for Felsa 4452 online:

🔗 Movements sharing the most parts

→ All calibers of Felsa

❓ Frequently asked questions

Which Felsa 4452 spare parts also fit other movements?

For the Felsa 4452, 34 part numbers are listed as interchangeable. Together they fit 9 other calibers – the table below shows which part fits which movement.

Which movements share the most parts with the Felsa 4452?

The most shared parts: Felsa 4552 (38 parts), Felsa 4450 (37 parts), Felsa 4462 (37 parts).

Which mainspring fits the Felsa 4452?

According to the Générale Ressorts catalogue (height × diameter × thickness × length): 1.20 × 10.0 × 0.115 × 340 mm (GR 2963, hand-wound, normal end hook).

🛠️ For the workshop

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