ETA 2520 – interchangeable spare parts
ETA 2520 movement
Which spare parts fit the ETA 2520 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 ETA (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 ETA 2520 (height × diameter × thickness × length) and matching mainspring in our shop:
📄 Technical document
View the original document for ETA 2520 online:
🔗 Movements sharing the most parts
- ETA 2520R (69 parts)
- ETA 2522 (67 parts)
- ETA 2532 (67 parts)
- ETA 2532R (65 parts)
- ETA 2522R (64 parts)
- ETA 2500 (52 parts)
- ETA 2538 (51 parts)
- ETA 2539 (51 parts)
- ETA 2538R (49 parts)
- ETA 2502 (49 parts)
- ETA 2503 (49 parts)
- ETA 2516 (49 parts)
- ETA 2539R (48 parts)
- ETA 2620 (28 parts)
- ETA 2630 (28 parts)
- ETA 2620R (27 parts)
❓ Frequently asked questions
Which ETA 2520 spare parts also fit other movements?
For the ETA 2520, 41 part numbers are listed as interchangeable. Together they fit 152 other calibers – the table below shows which part fits which movement.
Which movements share the most parts with the ETA 2520?
The most shared parts: ETA 2520R (69 parts), ETA 2522 (67 parts), ETA 2532 (67 parts).
Which mainspring fits the ETA 2520?
According to the Générale Ressorts catalogue (height × diameter × thickness × length): 1.20 × 11.5 × 0.115 × 400 mm (GR 2966-X, automatic, with welded slipping bridle).
🛠️ For the workshop
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