Unitas 201 – interchangeable spare parts

Unitas (UT) 201 movement

Which spare parts fit the Unitas 201 movement? For every part you can see which other calibers use the same part according to the original interchangeability list.

31Parts with interchange data

50Calibers sharing parts

Note: We have compiled this overview to the best of our knowledge and belief, based on the original interchangeability lists of Unitas (UT) 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	Unitas 200 Unitas 200N Unitas 201N
195ISO 20.060	Barrel arbor	Unitas 200 Unitas 200N Unitas 201N
201ISO 30.015	Center wheel	Unitas 200 Unitas 200N Unitas 201N
210ISO 30.025	Third wheel	Unitas 200 Unitas 200N Unitas 201N
224ISO 30.027.13	Fourth wheel	Unitas 200 Unitas 200N Unitas 201N
240ISO 31.080	Cannon-pinion	Unitas 200 Unitas 200N Unitas 201N Height 228 Unitas 200 Unitas 200N Unitas 201N Height 248 Unitas 200 Unitas 200N Unitas 201N Height 298 Unitas 200 Unitas 200N Unitas 201N Height 324 Unitas 200 Unitas 200N Unitas 201N
250ISO 31.046	Hour wheel	Unitas 200 Unitas 200N Unitas 201N Height 110 Unitas 200 Unitas 200N Unitas 201N Height 130 Unitas 200 Unitas 200N Unitas 201N Height 180 Unitas 200 Unitas 200N Unitas 201N Height 205 Unitas 200 Unitas 200N Unitas 201N
260ISO 31.041	Minute wheel	Unitas 200 Unitas 200N Unitas 201N
301ISO 40.301	Regulator for flat hairspring	Unitas 200 Unitas 200N Unitas 201N Unitas 580
311ISO 70.800	Upper cap jewel with end-piece	Unitas 190 Unitas 200 Unitas 200N Unitas 201N Unitas 540 Unitas 550 Unitas 580
330ISO 70.801	Lower cap jewel with end-piece	1st execution Unitas 200 Unitas 287 2nd execution Unitas 176 Unitas 180 Unitas 199 Unitas 200 Unitas 200N Unitas 201N Unitas 560 Unitas 570 Unitas 580 Unitas 600 Unitas 620 Unitas 630 Unitas 640 Unitas 650 Unitas 6320 Unitas 6330
336ISO 70.806	Upper cap-jewel with end-piece, for escape wheel	1st execution Unitas 200 Unitas 200 2e 2nd execution Unitas 180 Unitas 187 Unitas 190 Unitas 200 Unitas 200N Unitas 201N Unitas 510 Unitas 520 Unitas 521 Unitas 630 Unitas 6360 Unitas 6365 Unitas 6470 Unitas 6475 Unitas 6476 Unitas 6480 Unitas 6485 Unitas 6486
346ISO 70.807	Lower cap jewel with end-piece, f. esc. wheel	Unitas 190 Unitas 200 Unitas 200N Unitas 201N Unitas 510 Unitas 520 Unitas 521 Unitas 630 1st execution Unitas 176 Unitas 190 Unitas 200 Unitas 200N Unitas 201N Unitas 231 Unitas 233 Unitas 234 Unitas 285 Unitas 286 Unitas 343 Unitas 429 Unitas 431 Unitas 432 Unitas 510 Unitas 520 Unitas 521 Unitas 630
401ISO 51.010	Winding stem	Unitas 200 Unitas 200N Unitas 201N
407ISO 31.121	Clutch wheel	Unitas 200 Unitas 200N Unitas 201N
410ISO 31.120	Winding pinion	Unitas 200 Unitas 200N Unitas 201N
415ISO 31.020	Ratchet wheel	Unitas 200 Unitas 200N Unitas 201N
420ISO 31.023	Crown wheel	Unitas 200 Unitas 200N Unitas 201N
422ISO 81.067	Crown wheel ring	Unitas 200 Unitas 200N Unitas 201N
425ISO 51.120	Click	Unitas 200 2e Unitas 200N Unitas 201N
430ISO 61.080	Click spring	Unitas 200 Unitas 200N Unitas 201N
435ISO 51.050	Yoke	Unitas 200 Unitas 200N Unitas 201N Unitas 630
440ISO 61.100	Yoke spring	Unitas 200
443ISO 51.080	Setting lever	Unitas 200 Unitas 200N Unitas 201N
443/5443ISO 51.080.06/.01	Setting lever	Unitas 200 Unitas 200N Unitas 201N
445ISO 51.090	Setting lever spring	Unitas 200
450ISO 31.100	Setting wheel	Unitas 200 Unitas 200N Unitas 201N
702ISO 30.040.12	Escape wheel and pinion, pivoted, for two end-pieces	Unitas 200 Unitas 200N Unitas 201N
704ISO 30.040.10	Escape wheel and pinion, for upper end-piece	Unitas 200 Unitas 200N Unitas 201N
705ISO 30.040	Escape wheel and pinion	Unitas 200 Unitas 200N Unitas 201N
710ISO 40.010	Jewelled pallet fork and stat	AS 1051 AV 46 ETA 1302 FEF 270 FHF 62 Felsa 351 INT.S 36 Peseux 280 Unitas 190 Unitas 200 Unitas 200N Unitas 201N Unitas 580 Unitas 630 Unitas 6360 Unitas 6365 Unitas 6365N

Source: original interchangeability lists of Unitas (UT) (checked transcription) and checked original spare-part labels · as of 2026-10-28. Height / execution: the part fits only in this height or execution.

🔗 Movements sharing the most parts

→ All calibers of Unitas (UT)

❓ Frequently asked questions

Which Unitas 201 spare parts also fit other movements?

For the Unitas 201, 31 part numbers are listed as interchangeable. Together they fit 50 other calibers – the table below shows which part fits which movement.