Unitas 429N – interchangeable spare parts
Unitas (UT) 429N movement
Which spare parts fit the Unitas 429N movement? For every part you can see which other calibers use the same part according to the original interchangeability list.
🔧 Interchangeable parts
| Part no. | Description | Also fits |
|---|---|---|
| 182ISO 20.030 | Barrel and cover | |
| 195ISO 20.060 | Barrel arbor | |
| 201ISO 30.015 | Center wheel | |
| 210ISO 30.025 | Third wheel | |
| 224ISO 30.027.13 | Fourth wheel | |
| 240ISO 31.080 | Cannon-pinion | Height 295 Height 310 Height 345 Height 360 |
| 250ISO 31.046 | Hour wheel | Height 180 Height 230 |
| 260ISO 31.041 | Minute wheel | |
| 301ISO 40.301 | Regulator for flat hairspring | |
| 311ISO 70.800 | Upper cap jewel with end-piece | |
| 330ISO 70.801 | Lower cap jewel with end-piece | |
| 336ISO 70.806 | Upper cap-jewel with end-piece, for escape wheel | |
| 346ISO 70.807 | Lower cap jewel with end-piece, f. esc. wheel | |
| 401ISO 51.010 | Winding stem | |
| 402ISO 51.015 | Negative stem (movement portion) | |
| 407ISO 31.121 | Clutch wheel | |
| 410ISO 31.120 | Winding pinion | |
| 415ISO 31.020 | Ratchet wheel | |
| 425ISO 51.120 | Click | |
| 430ISO 61.080 | Click spring | |
| 435ISO 51.050 | Yoke | |
| 438ISO 51.050 | Negative hand-setting yoke | |
| 440ISO 61.100 | Yoke spring | |
| 443ISO 51.080 | Setting lever | |
| 443/5443ISO 51.080.06/.01 | Setting lever | |
| 445ISO 51.090 | Setting lever spring | |
| 446ISO 51.090 | Setting lever spring for negative hand-setting | |
| 450ISO 31.100 | Setting wheel | |
| 453ISO 31.101 | Intermediate setting wheel | |
| 702ISO 30.040.12 | Escape wheel and pinion, pivoted, for two end-pieces | |
| 704ISO 30.040.10 | Escape wheel and pinion, for upper end-piece | |
| 705ISO 30.040 | Escape wheel and pinion | |
| 710ISO 40.010 | Jewelled pallet fork and stat |
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.
🌀 Matching mainspring
Mainspring dimensions for Unitas 429N (height × diameter × thickness × length) and matching mainspring in our shop:
🔗 Movements sharing the most parts
- Unitas 429 (44 parts)
- Unitas 445 (23 parts)
- Unitas 231 (22 parts)
- Unitas 431 (22 parts)
- Unitas 446 (22 parts)
- Unitas 432 (21 parts)
- Unitas 343 (18 parts)
- Unitas 6431 (16 parts)
- Unitas 6445 (16 parts)
- Unitas 6461 (14 parts)
- Unitas 233 (7 parts)
- Unitas 444 (7 parts)
- Unitas 234 (6 parts)
- Unitas 498 (5 parts)
- Unitas 285 (5 parts)
- Unitas 497 (5 parts)
❓ Frequently asked questions
Which Unitas 429N spare parts also fit other movements?
For the Unitas 429N, 33 part numbers are listed as interchangeable. Together they fit 22 other calibers – the table below shows which part fits which movement.
Which movements share the most parts with the Unitas 429N?
The most shared parts: Unitas 429 (44 parts), Unitas 445 (23 parts), Unitas 231 (22 parts).
Which mainspring fits the Unitas 429N?
According to the Générale Ressorts catalogue (height × diameter × thickness × length): 2.50 × 17.0 × 0.20 × 500 mm (GR 6703, hand-wound, normal end hook).
🛠️ For the workshop
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