Unitas 6343 – interchangeable spare parts
Unitas (UT) 6343 movement
Which spare parts fit the Unitas 6343 movement? For every part you can see which other calibers use the same part according to the original interchangeability list.
🔧 Interchangeable parts
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 6343 (height × diameter × thickness × length) and matching mainspring in our shop:
🔗 Movements sharing the most parts
- Unitas 6340 (52 parts)
- Unitas 6342 (52 parts)
- Unitas 6340N (44 parts)
- Unitas 6342N (44 parts)
- Unitas 6343N (44 parts)
- Unitas 6450 (38 parts)
- Unitas 6452 (38 parts)
- Unitas 640 (35 parts)
- Unitas 6460 (35 parts)
- Unitas 6450N (30 parts)
- Unitas 6452N (30 parts)
- Unitas 6460N (27 parts)
- Unitas 6310 (26 parts)
- Unitas 650 (25 parts)
- Unitas 6312 (25 parts)
- Unitas 6311 (24 parts)
❓ Frequently asked questions
Which Unitas 6343 spare parts also fit other movements?
For the Unitas 6343, 32 part numbers are listed as interchangeable. Together they fit 64 other calibers – the table below shows which part fits which movement.
Which movements share the most parts with the Unitas 6343?
The most shared parts: Unitas 6340 (52 parts), Unitas 6342 (52 parts), Unitas 6340N (44 parts).
Which mainspring fits the Unitas 6343?
According to the Générale Ressorts catalogue (height × diameter × thickness × length): 1.50 × 11.5 × 0.135 × 360 mm (GR 4208, hand-wound, normal end hook).
🛠️ For the workshop
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