ETA 1100 – interchangeable spare parts
ETA 1100 movement
Which spare parts fit the ETA 1100 movement? For every part you can see which other calibers use the same part according to the original interchangeability list.
🛒 Spare parts for ETA 1100 in our shop
🔧 Interchangeable parts
| Part no. | Description | Also fits |
|---|---|---|
| 311ISO 70.800 | Upper cap jewel with end-piece, f. balance | |
| 330ISO 70.801 | Lower cap jewel with end-piece, f. balance | |
| 336ISO 70.806 | Upper cap-jewel with end-piece, for escape wheel | |
| 342ISO 70.881 | Bearing-plate, for sweep-second | |
| 343ISO 70.891 | Bearing plate, for sweep second wheel | |
| 346ISO 70.807 | Lower cap jewel with end-piece, f. esc. wh. | |
| 401ISO 51.010 | Winding stem | |
| 407ISO 31.121 | Sliding pinion | |
| 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 | |
| 702C | Escape wheel and pinion, pivoted, for two end-pieces |
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 1100 (height × diameter × thickness × length) and matching mainspring in our shop:
🔗 Movements sharing the most parts
❓ Frequently asked questions
Which ETA 1100 spare parts also fit other movements?
For the ETA 1100, 19 part numbers are listed as interchangeable. Together they fit 29 other calibers – the table below shows which part fits which movement.
Which movements share the most parts with the ETA 1100?
The most shared parts: ETA 1120 (17 parts), ETA 1080 (7 parts), ETA 1093 (7 parts).
Which mainspring fits the ETA 1100?
According to the Générale Ressorts catalogue (height × diameter × thickness × length): 1.50 × 10.5 × 0.13 × 320 mm (GR 4196, hand-wound, normal end hook).
Can I buy spare parts for the ETA 1100?
Yes, Master Watch Parts currently has 1 matching items in stock.
🛠️ For the workshop
Replacement Sapphire Watch Crystal, Flat, 1.0 mm, Ø 15 - 45 mm22,40 € – 34,90 € incl. VAT *View item ›
HIGH DOMED ACRYLIC GLASS Replacement Watch Glass for Wristwatches and Pocket Watches H: 5.25mm6,99 € – 9,99 € incl. VAT *View item ›
Clock Winding Key No. 8 for 4.25 mm Square, Brass7,95 € incl. VAT *View item ›