ETA 2780 – interchangeable spare parts
ETA 2780 movement
Which spare parts fit the ETA 2780 movement? For every part you can see which other calibers use the same part according to the original interchangeability list.
🔧 Interchangeable parts
| Part no. | Description | Also fits |
|---|---|---|
| 255 | Hour wheel | Height 201according to original label |
| 255/1 | Hour wheel, assembled | |
| 415 | Ratchet wheel | |
| 425 | Click | according to original label ETA 2520ETA 2520RETA 2522ETA 2522RETA 2526ETA 2528ETA 2528RETA 2530ETA 2532ETA 2532RETA 2536ETA 2538ETA 2538RETA 2539ETA 2620ETA 2620RETA 2622ETA 2622RETA 2623ETA 2626ETA 2628ETA 2628RETA 2630ETA 2632ETA 2636ETA 2638ETA 2722ETA 2722RETA 2724ETA 2724RETA 2726ETA 2728ETA 2730ETA 2732ETA 2732RETA 2734ETA 2734RETA 2736ETA 2762ETA 2770ETA 2772ETA 2776 |
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 2780 (height × diameter × thickness × length) and matching mainspring in our shop:
🔗 Movements sharing the most parts
❓ Frequently asked questions
Which ETA 2780 spare parts also fit other movements?
For the ETA 2780, 4 part numbers are listed as interchangeable. Together they fit 74 other calibers – the table below shows which part fits which movement.
Which movements share the most parts with the ETA 2780?
The most shared parts: ETA 2770 (4 parts), ETA 2772 (4 parts), ETA 2776 (4 parts).
Which mainspring fits the ETA 2780?
According to the Générale Ressorts catalogue (height × diameter × thickness × length): 1.45 × 11.0 × 0.13 × 420 mm (GR 4014-X, automatic, with welded slipping bridle).
🛠️ For the workshop
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 ›
Swiss Super-LumiNova BGW9 Grade A Luminous Pigment with Clear Lacquer and Thinner99,90 € – 134,90 € incl. VAT *View item ›
SAPPHIRE CRYSTAL WATCH GLASS REPLACEMENT ROUND 2.0 MM THICK FLAT SIZE 20MM-42.5MM27,90 € – 39,90 € incl. VAT *View item ›