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Mainspring
For ETA 821
1.50 x 0.140 x 360 x 12.0 mm
Height (H): 1.5mm
Thickness (T): 0.14mm
Total Length (TL): 360mm
Barrel Diameter (BD): 12mm
End Type: Manual
To look for similar mainsprings that exactly match a specific dimension, select it from the links above.
GR Approximation
This mainspring does not have a GR reference. The following GR mainsprings are the closest fit, when values differ the exact value is shown brackets for reference:
Movement Listing
This mainspring is used by the following movements:
| Movement | Description | Ligne |
|---|---|---|
| Bulova C858008 | BULOVA CASE REFERENCE | |
| Bulova C870184 | ||
| FICH RW750 | ||
| Bulova MIY 6L70 | MIYOTA 6L70 | 6316.27 |
| Citizen 4-F92454 | CITIZEN CASE | |
| Citizen 4-F92454 | CITIZEN CASE | |
| Citizen 45-3391 | CITIZE CASE REFERENCE | |
| FICH RW750 | ||
| Parrenin Z181 | 21,600 BPH 17JL DSS CALD | 11.5 |
| Seiko 2F70-5470 | SEIKO CASE REFERENCE | |
| Seiko 4720-5000 | SEIKO CASE REFERENCE | |
| Seiko 8923A |
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Similar Mainspring Listing
This mainspring is similar to the mainspring used by the following movements. A similar mainspring differs slightly in one or more dimensions but may possibly still work as a replacement. When values differ the exact value is shown brackets for reference:
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