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EB (Bettlach) – mainsprings for all calibers
199 calibers with mainspring dimensions
Choose the caliber of your EB movement. The caliber page shows the mainspring dimensions and – if in stock – the matching mainspring from our shop.
Note: We have transcribed this information to the best of our knowledge from the Générale Ressorts mainspring catalogue (GR 2, 1974). All information has been carefully checked but is provided without guarantee. Please check yourself before fitting that the mainspring fits, in particular height, diameter, thickness and length.
⚙️ All calibers
EB 0–99
EB 100–199
EB 200–299
EB 400–499
EB 500–599
EB 600–699
EB 700–799
EB 800–899
EB 900–999
EB 1000–1099
EB 1100–1199
EB 1200–1299
EB 1300–1399
EB 1400–1499
EB 1500–1599
EB 1600–1699
EB 8000–8099
EB 8100–8199
EB 8200–8299
EB 8300–8399
- 8320
- 8320-66
- 8320-67
- 8321
- 8321-66
- 8321-67
- 8330
- 8330-66
- 8330-67
- 8331
- 8331-66
- 8331-67
- 8340
- 8340-66
- 8340-67
- 8341
- 8341-66
- 8341-67
- 8350
- 8350-66
- 8350-67
- 8354
- 8354-66
- 8354-67
- 8356
- 8361
- 8361-66
- 8361-67
- 8364
- 8365
- 8365-66
- 8365-67
- 8366
- 8367
- 8370-66
- 8370-67
- 8371 CHR
- 8371-67-1 R
- 8371-67-17 R
- 8371-72
- 8374
- 8374-66
- 8374-67
- 8375
- 8376
- 8376-66
- 8376-67
- 8377-17 R
- 8377- 1 R
- 8381
- 8381-66. 8381-67
- 8385
- 8385-66
- 8385-67
- 8387
- 8387-66
- 8387-67
- 8391
- 8391-66
- 8391-67
- 8393
- 8393-67
- 8395
- 8395-66
- 8395-67
- 8397
- 8397-66
- 8397-67
- 8398/8399
EB 8400–8499
EB 8800–8899