ETA 2540 – interchangeable spare parts
ETA 2540 movement
Which spare parts fit the ETA 2540 movement? For every part you can see which other calibers use the same part according to the original interchangeability list.
🛒 Spare parts for ETA 2540 in our shop
Yoke Spring ETA Part 440 for ETA 2540, ETA 260014,90 € incl. VAT *View item ›
Plate for ETA 2540 – Part 100 – NOS24,95 € incl. VAT *View item ›
Setting Wheel for ETA 2540 – Part 450, also fits ETA 2541, 2550, 2580 – NOS12,90 € incl. VAT *View item ›
Ratchet Wheel for ETA 2540, 2541 – Part 415 – Ref. 31.020 – NOS9,90 € incl. VAT *View item ›
Winding Pinion for ETA 2510, 2512, 2540, 2580 – Ref. 31.120 – Part 410 – NOS11,90 € incl. VAT *View item ›
Clutch Wheel for ETA 2510, Part 407 – Also fits ETA 2512, 2540, 2541, 2550, 2551, 257011,90 € incl. VAT *View item ›🔧 Interchangeable parts
| Part no. | Description | Also fits |
|---|---|---|
| 161ISO 80.400 | Centre tube | |
| 182ISO 20.030 | Barrel and cover | |
| 195ISO 20.060 | Barrel arbor | |
| 203ISO 30.012 | Intermediate wheel | |
| 210ISO 30.025 | Third wheel | |
| 227ISO 30.027 | Sweep second wheel | |
| 227/3ISO 30.027.18 | Second wheel, without sweep second | |
| 242ISO 31.083 | Cannon pinion with driving wheel | |
| 242/1ISO 31.083.18 | Cannon pinion with driver, without sweep second | |
| 255ISO 31.046 | Hour wheel | |
| 260ISO 31.041 | Minute wheel | |
| 307ISO 40.301 | Regulator without pointer, assembled | |
| 311ISO 70.800 | Upper cap jewel with end-piece, f. balance | |
| 330ISO 70.801 | Lower cap jewel with end-piece, f. balance | |
| 401ISO 51.010 | Winding stem | |
| 407ISO 31.121 | Clutch wheel | |
| 410ISO 31.120 | Winding pinion | |
| 415ISO 31.020 | Ratchet wheel | |
| 420ISO 31.023 | Crown wheel | |
| 422ISO 81.067 | Crown wheel ring | |
| 425ISO 51.120 | Click | |
| 430ISO 61.080 | Click spring | |
| 435ISO 51.050 | Yoke | |
| 440ISO 61.100 | Yoke spring | |
| 443ISO 51.080 | Setting lever | |
| 443/5443ISO 51.080.06/.01 | Setting lever | |
| 445ISO 51.090 | Setting lever spring | |
| 450ISO 31.100 | Setting wheel | |
| 462ISO 10.062 | Minute work cock | |
| 705ISO 30.040 | Escape wheel and pinion with straight pivots | |
| 710ISO 40.010 | Jewelled pallet and staff |
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 2540 (height × diameter × thickness × length) and matching mainspring in our shop:
📄 Technical document
View the original document for ETA 2540 online:
🔗 Movements sharing the most parts
❓ Frequently asked questions
Which ETA 2540 spare parts also fit other movements?
For the ETA 2540, 31 part numbers are listed as interchangeable. Together they fit 35 other calibers – the table below shows which part fits which movement.
Which movements share the most parts with the ETA 2540?
The most shared parts: ETA 2541 (47 parts), ETA 2550 (40 parts), ETA 2550R (40 parts).
Which mainspring fits the ETA 2540?
According to the Générale Ressorts catalogue (height × diameter × thickness × length): 1.30 × 7.5 × 0.08 × 260 mm (GR 3203, hand-wound, normal end hook).
Can I buy spare parts for the ETA 2540?
Yes, Master Watch Parts currently has 6 matching items in stock.
🛠️ For the workshop
Clock Key 2-4-6-8-10, Star Key for Large Clocks and Wall Clocks, Brass – New8,49 € incl. VAT *View item ›
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 ›