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.DescriptionAlso fits
255Hour wheel for sweep second
Height 1,15
Becker 110Becker 111Becker 112Becker 113Becker 114Becker 213Becker 214Becker 313Becker 314
401Winding stem
Becker 110Becker 111Becker 112Becker 113Becker 114Becker 213Becker 214Becker 313Becker 314
407Clutch wheel
Becker 110Becker 111Becker 112Becker 113Becker 114Becker 213Becker 214Becker 313Becker 314
410Winding pinion
Becker 110Becker 111Becker 112Becker 113Becker 114Becker 313Becker 411Becker 412Becker 413Becker 414
415Ratchet wheel
Becker 110Becker 111Becker 112Becker 113Becker 114Becker 313Becker 411Becker 412Becker 413Becker 414
420Crown wheel
Becker 110Becker 111Becker 112Becker 113Becker 114Becker 213Becker 214Becker 313Becker 314
Becker 110Becker 111Becker 112Becker 113Becker 114Becker 313Becker 411Becker 412Becker 413Becker 414
425Click
Becker 110Becker 111Becker 112Becker 113Becker 114Becker 213Becker 214Becker 313Becker 314
435Yoke (clutch lever)
Becker 110Becker 111Becker 112Becker 113Becker 114Becker 213Becker 214Becker 313Becker 314
445Setting lever spring (set bridge)
Becker 110Becker 111Becker 112Becker 113Becker 114Becker 213Becker 214Becker 313Becker 314Becker 411Becker 412Becker 413Becker 414
450Setting wheel
Becker 110Becker 111Becker 112Becker 113Becker 114Becker 213Becker 214Becker 313Becker 314

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:

🔗 Movements sharing the most parts

→ All calibers of Becker

❓ Frequently asked questions

Which Becker 312 spare parts also fit other movements?

For the Becker 312, 10 part numbers are listed as interchangeable. Together they fit 13 other calibers – the table below shows which part fits which movement.

Which movements share the most parts with the Becker 312?

The most shared parts: Becker 110 (11 parts), Becker 111 (11 parts), Becker 112 (11 parts).

Which mainspring fits the Becker 312?

According to the Générale Ressorts catalogue (height × diameter × thickness × length): 1.20 × 9.0 × 0.10 × 320 mm (GR 2921, hand-wound, normal end hook).

🛠️ For the workshop

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