Unitas 6330 – interchangeable spare parts

Unitas (UT) 6330 movement

Which spare parts fit the Unitas 6330 movement? For every part you can see which other calibers use the same part according to the original interchangeability list.

19Parts with interchange data
59Calibers 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.DescriptionAlso fits
182ISO 20.030Barrel and cover
224ISO 30.027.13Fourth wheel
240ISO 31.080Cannon-pinion
250ISO 31.046Hour wheel
260ISO 31.041Minute wheel
301ISO 40.301Regulator for flat hairspring
311ISO 70.800Upper cap jewel with end-piece
330ISO 70.801Lower cap jewel with end-piece
336ISO 70.806Upper cap-jewel with end-piece, for escape wheel
401ISO 51.010Winding stem
407ISO 31.121Clutch wheel
415ISO 31.020Ratchet wheel
425ISO 51.120Click
430ISO 61.080Click spring
435ISO 51.050Yoke
440ISO 61.100Yoke spring
443ISO 51.080Setting lever
445ISO 51.090Setting lever spring
450ISO 31.100Setting wheel

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 6330 (height × diameter × thickness × length) and matching mainspring in our shop:

🔗 Movements sharing the most parts

→ All calibers of Unitas (UT)

❓ Frequently asked questions

Which Unitas 6330 spare parts also fit other movements?

For the Unitas 6330, 19 part numbers are listed as interchangeable. Together they fit 59 other calibers – the table below shows which part fits which movement.

Which movements share the most parts with the Unitas 6330?

The most shared parts: Unitas 6320 (34 parts), Unitas 620 (27 parts), Unitas 6310 (26 parts).

Which mainspring fits the Unitas 6330?

According to the Générale Ressorts catalogue (height × diameter × thickness × length): 1.75 × 12.0 × 0.135 × 420 mm (GR 5174, hand-wound, normal end hook).

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