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Mainspring
For Unitas 490
2.00 x 0.200 x 475 x 16.5 mm
Height (H): 2mm
Thickness (T): 0.2mm
Total Length (TL): 475mm
Barrel Diameter (BD): 16.5mm
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 |
|---|---|---|
| Benrus FY3D | NO SECOND | 10.5 |
| Citizen 4-402944 | CITIZEN CASE | |
| Citizen 4-F70281 | CITIZEN CASE | |
| Citizen 4-822102 | CITIZEN CASE | |
| Citizen 4-F70281 | CITIZEN CASE | |
| Citizen 4-822102 | CITIZEN CASE | |
| Citizen 4-G14610 | CITIZEN CASE | |
| Citizen 4-Y68633 | CITIZEN CASE | |
| Elgin 729 | ||
| ETA 995 | CAL BM ETA 810 | 12 |
| Seiko 1230-5120 | SEIKO CASE REFERENCE | |
| Seiko 1320-6070 | SEIKO CASE REFERENCE | |
| Seiko 5C23-8020 | SEIKO CASE REFERENCE | |
| Seiko 5H23-6219 | SEIKO CASE REFERENCE | |
| Seiko 7C43-7009 | SEIKO CASE REFERENCE | |
| Seiko A028-5070 | SEIKO CASE REFERENCE | |
| Seiko V810-6350 | 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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