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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 34-5741 | CITIZE CASE REFERENCE | |
| Citizen 35-6778 | CITIZE CASE REFERENCE | |
| Rolex 6800-8 | ROLEX CASE REFERENCE | |
| Seiko 0903-8090 | SEIKO CASE REFERENCE | |
| Seiko 7750-5180 | SEIKO CASE REFERENCE | |
| Seiko 7N29-8101 | SEIKO CASE 951201 | |
| Seiko V232-0650 | SEIKO CASE REFERENCE | |
| Seiko Y491-4080 | PULSAR CASE REFERENCE | |
| Seiko Y588-5140 | PHASER |
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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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