ETA 555.421 – interchangeable spare parts
ETA 555.421 movement
Which spare parts fit the ETA 555.421 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.
🔗 Movements sharing the most parts
- ETA 555.121 (41 parts)
- ETA 555.422 (32 parts)
- ETA 556.121 (31 parts)
- ETA 555.425 (31 parts)
- ETA 955.421 (31 parts)
- ETA 955.422 (31 parts)
- ETA 555.111 (30 parts)
- ETA 555.411 (30 parts)
- ETA 955.424 (30 parts)
- ETA 555.122 (29 parts)
- ETA 555.419 (29 parts)
- ETA 955.419 (29 parts)
- ETA 955.423 (29 parts)
- ETA 555.125 (28 parts)
- ETA 955.121 (28 parts)
- ETA 955.122 (28 parts)
❓ Frequently asked questions
Which ETA 555.421 spare parts also fit other movements?
For the ETA 555.421, 42 part numbers are listed as interchangeable. Together they fit 163 other calibers – the table below shows which part fits which movement.
Which movements share the most parts with the ETA 555.421?
The most shared parts: ETA 555.121 (41 parts), ETA 555.422 (32 parts), ETA 556.121 (31 parts).
🛠️ For the workshop
Watch Gasket Hytrel I-Ring Seal for Flat Round Mineral Crystals 16-40 mm, H: 0.6, 0.8, 0.85, 1.25, 1.7 mm5,95 € – 9,95 € incl. VAT *View item ›
Red Teflon Hard Gasket For Watch Caseback Multi Size Listing Ø 16-42. Suitable for many brand watches such as Omega, Tissot, Junghans5,95 € – 7,95 € incl. VAT *View item ›
Original Super Luminova Thinner A61 for Lume Watch Hands, 1 g13,90 € incl. VAT *View item ›