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Mainspring
For Unitas 331
1.60 x 0.090 x 280 x 8.5 mm
Height (H): 1.6mm
Thickness (T): 0.09mm
Total Length (TL): 280mm
Barrel Diameter (BD): 8.5mm
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 |
|---|---|---|
| Citizen 4-099451 | CITIZEN CASE | |
| Citizen 4-262646 | CITIZEN CASE | |
| Citizen 4-L05116 | CITIZEN CASE | |
| Ronda 871 | QUARTZ-ANALOG | 8.75 |
| Seiko 2F50-5090 | SEIKO CASE REFERENCE | |
| Seiko 5Y39-7140 | SEIKO CASE REFERENCE | |
| Seiko 7810-5009 | SEIKO CASE REFERENCE | |
| Seiko 7T32-6K99 | ||
| Seiko V782-6A80 | SEIKO CASE 951201 |
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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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