Felsa 233 – interchangeable spare parts

Felsa 233 movement

Which spare parts fit the Felsa 233 movement? For every part you can see which other calibers use the same part according to the original interchangeability list.

25Parts with interchange data

52Calibers 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.	Description	Also fits
201ISO 30.015	Center wheel	AM 382
210ISO 30.025	Third wheel	AM 382Felsa 382
224ISO 30.027.13	Fourth wheel	AM 382Felsa 382
240ISO 31.080	Cannon-pinion	Felsa 382 Height 198 AM 382Felsa 382 Felsa 4020 Felsa 4021 Felsa 4022 Felsa 4023 Felsa 4120 Felsa 4121 Felsa 4122 Felsa 4130 Height 218 AM 382Felsa 382 Felsa 4020 Felsa 4021 Felsa 4022 Felsa 4023 Felsa 4120 Felsa 4121 Felsa 4122 Felsa 4130 Height 238 AM 382Felsa 382 Felsa 4020 Felsa 4021 Felsa 4022 Felsa 4023 Felsa 4120 Felsa 4121 Felsa 4122 Felsa 4130 Height 278 AM 382Felsa 382 Felsa 4020 Felsa 4021 Felsa 4022 Felsa 4023 Felsa 4120 Felsa 4121 Felsa 4122 Height 735 AM 382Felsa 382
250ISO 31.046	Hour wheel	Felsa 382 Height 110 AM 382Felsa 382 Height 130 AM 382Felsa 382 Height 150 AM 382Felsa 382 Height 190 AM 382Felsa 382 Height 647 AM 382Felsa 382
260ISO 31.041	Minute wheel	AM 382Felsa 382
301ISO 40.301	Regulator for flat hairspring	AM 382Felsa 382
311ISO 70.800	Upper cap jewel with end-piece	AM 382Felsa 290 Felsa 291 Felsa 372 Felsa 372N Felsa 373 Felsa 373N Felsa 382 Felsa 4020 Felsa 4021 Felsa 4022 Felsa 4023 Felsa 4024 Felsa 4025 Felsa 4120 Felsa 4121 Felsa 4122 Felsa 4124 Felsa 4125
330ISO 70.801	Lower cap jewel with end-piece	AM 382Felsa 294 Felsa 300 Felsa 304 Felsa 382 Felsa 390 Felsa 391 Felsa 395 Felsa 399 Felsa 750 Felsa 751 Felsa 752
336ISO 70.806	Upper cap-jewel with end-piece, for escape wheel	1st execution Felsa 290 Felsa 291 Felsa 370 Felsa 382 2nd execution Felsa 21 Felsa 21 2e Felsa 21N Felsa 22 Felsa 22N Felsa 26 Felsa 27 Felsa 28 Felsa 29 Felsa 290 Felsa 291 Felsa 302 Felsa 370 Felsa 372 Felsa 372N Felsa 373 Felsa 373N Felsa 382
346ISO 70.807	Lower cap jewel with end-piece, f. esc. wheel	Felsa 370 Felsa 382
407ISO 31.121	Clutch wheel	AM 382Felsa 382
410ISO 31.120	Winding pinion	AM 382Felsa 382
422ISO 81.067	Crown wheel ring	AM 382Felsa 370 Felsa 382
425ISO 51.120	Click	2nd execution Felsa 290 Felsa 291 Felsa 302 Felsa 372 Felsa 372N Felsa 373 Felsa 373N
430ISO 61.080	Click spring	AM 382Felsa 370 Felsa 382
435ISO 51.050	Yoke	AM 382Felsa 382 Felsa 4020 Felsa 4021 Felsa 4022 Felsa 4023 Felsa 4025 Felsa 4120 Felsa 4121 Felsa 4122 Felsa 4125 Felsa 4130
443ISO 51.080	Setting lever	AM 382Felsa 382
443/5443ISO 51.080.06/.01	Setting lever	AM 382Felsa 382
445ISO 51.090	Setting lever spring	AM 382Felsa 382 according to original label Felsa 380 Felsa 382
450ISO 31.100	Setting wheel	AM 382Felsa 382
702ISO 30.040.12	Escape wheel and pinion, pivoted, for two end-pieces	Felsa 382
704ISO 30.040.10	Escape wheel and pinion, for upper end-piece	Felsa 382
705ISO 30.040	Escape wheel and pinion	AM 382Felsa 382
710ISO 40.010	Jewelled pallet fork and stat	AM 382AS 1977 AS 1977-2 AS 1977-2 INT AS 1978 AS 1978-2 AV 39 AM 382AS 1977 AS 1977-2 INT AV 39 Felsa 382 AM 382AS 1977 AS 1977-2 INT AS 1977-5 AV 39 Durowe 72 Durowe 75 Durowe 1977-4 Durowe 1980

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

Felsa 233: 1.30 × 6.5 × 0.075 × 220 mm (GR 3193)

🔗 Movements sharing the most parts

→ All calibers of Felsa

❓ Frequently asked questions

Which Felsa 233 spare parts also fit other movements?

For the Felsa 233, 25 part numbers are listed as interchangeable. Together they fit 52 other calibers – the table below shows which part fits which movement.

Which movements share the most parts with the Felsa 233?

The most shared parts: Felsa 382 (35 parts), Felsa 4020 (6 parts), Felsa 4021 (6 parts).

Which mainspring fits the Felsa 233?

According to the Générale Ressorts catalogue (height × diameter × thickness × length): 1.30 × 6.5 × 0.075 × 220 mm (GR 3193, hand-wound, normal end hook).