ETA 2451 – interchangeable spare parts
ETA 2451 movement
Which spare parts fit the ETA 2451 movement? For every part you can see which other calibers use the same part according to the original interchangeability list.
41Parts with interchange data
72Calibers sharing parts
Note: We have compiled this overview to the best of our knowledge and belief, based on the original interchangeability lists of ETA and the original spare-part labels. All information has been carefully checked but is provided without guarantee. Please verify the interchangeability yourself before fitting, especially the height, diameter and execution of the part.
🛒 Spare parts for ETA 2451 in our shop
Mainplate for ETA 2451 – Part 100 – NOS29,95 € incl. VAT *View item
ETA 2451 incomplete Watch MOVEMENT NOS, Swiss made - for repair or for parts84,90 € incl. VAT *View item
Reduction Gear for ETA 2450, ETA 2451, ETA 2453, ETA 2474 – Part 148114,00 € – 16,00 € incl. VAT *View item
Barrel with Arbor for ETA 2450, 2451, 2474 – Part 18020,90 € 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 | |
| 242ISO 31.083 | Cannon pinion with driving wheel | |
| 255ISO 31.046 | Hour wheel | |
| 260ISO 31.041 | Minute wheel | |
| 301ISO 40.301 | Regulator for flat hairspring | |
| 307ISO 40.301 | Regulator without pointer, assembled | |
| 307/2ISO 40.302 | 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 | ETA 1260ETA 1280ETA 2360ETA 2363ETA 2365ETA 2369ETA 2370ETA 2373ETA 2375ETA 2378ETA 2390ETA 2391ETA 2408ETA 2409ETA 2410ETA 2412ETA 2425ETA 2428ETA 2440ETA 2442ETA 2450ETA 2452ETA 2453ETA 2454ETA 2460ETA 2472ETA 2474ETA 2490ETA 2491ETA 2500ETA 2502ETA 2503ETA 2516ETA 2520ETA 2520RETA 2522ETA 2522RETA 2532ETA 2532RETA 2538ETA 2538RETA 2539ETA 2539R |
| 346ISO 70.807 | Lower cap jewel with end-piece, f. esc. wh. | |
| 401ISO 51.010 | Winding stem | |
| 407ISO 31.121 | Clutch wheel | ETA 2390ETA 2391ETA 2408ETA 2409ETA 2450ETA 2452ETA 2453ETA 2454ETA 2460ETA 2472ETA 2474ETA 2500ETA 2502ETA 2503ETA 2516ETA 2520ETA 2520RETA 2522ETA 2522RETA 2532ETA 2532RETA 2538ETA 2538RETA 2539ETA 2539RETA 2600ETA 2602ETA 2612ETA 2620ETA 2620RETA 2622ETA 2622RETA 2623ETA 2623RETA 2630ETA 2632ETA 2638ETA 2638RETA 2639ETA 2639RETA 2722ETA 2722RETA 2724ETA 2724RETA 2728ETA 2732ETA 2732RETA 2734ETA 2734RETA 2738 |
| 410ISO 31.120 | Winding pinion | |
| 415ISO 31.020 | Ratchet wheel | |
| 420ISO 31.023 | Crown wheel | |
| 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 | |
| 460ISO 51.055 | Crown wheel rocker | |
| 462ISO 10.062 | Minute work cock | |
| 703ISO 30.040.11 | Escape wheel and pinion, for lower end-piece | |
| 710ISO 40.010 | Jewelled pallet fork and staff | |
| 1143/1ISO 22.010.06 | Oscillating weight, mounted | |
| 1481ISO 32.031 | Reduction gear | |
| 1482ISO 32.033 | Driving gear for ratchet wheel | |
| 1488ISO 32.037 | Pawl winding wheel, complete (w. pinion) | |
| 1498ISO 32.020 | Bearing wheel for oscillating weight | |
| 1525ISO 52.122 | Bolt for reduction gear | |
| 1526ISO 52.125 | Bolt for pawl winding wheel | |
| 1530ISO 32.038 | Additional pawl wind. wh. (without pin.) | |
| 51498ISO 32.020.01 | Screw f. bearing wheel f. oscill. weight |
Source: original interchangeability lists of ETA (checked transcription) and checked original spare-part labels · as of 2026-10-18. Height / execution: the part fits only in this height or execution.
🌀 Matching mainspring
Mainspring dimensions for ETA 2451 (height × diameter × thickness × length) and matching mainspring in our shop: