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Becker 312 – interchangeable spare parts
Becker 312 movement
Which spare parts fit the Becker 312 movement? For every part you can see which other calibers use the same part according to the original Becker spare-part labels. We do not have an original interchangeability list from the manufacturer.
10Parts with interchange data
13Calibers sharing parts
Note: We have compiled this overview to the best of our knowledge and belief, based on the original Becker spare-part labels; we do not have an original interchangeability list from the manufacturer. 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 |
|---|---|---|
| 255 | Hour wheel for sweep second | |
| 401 | Winding stem | |
| 407 | Clutch wheel | |
| 410 | Winding pinion | |
| 415 | Ratchet wheel | |
| 420 | Crown wheel | |
| 425 | Click | |
| 435 | Yoke (clutch lever) | |
| 445 | Setting lever spring (set bridge) | |
| 450 | Setting wheel |
Source: checked original Becker spare-part labels · as of 2026-10-18. Height / execution: the part fits only in this height or execution.
🌀 Matching mainspring
Mainspring dimensions for Becker 312 (height × diameter × thickness × length) and matching mainspring in our shop: