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Mainspring
For Unitas 439
1.25 x 0.070 x 210 x 6.5 mm
Height (H): 1.25mm
Thickness (T): 0.07mm
Total Length (TL): 210mm
Barrel Diameter (BD): 6.5mm
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 |
|---|---|---|
| Seiko A557-506A | SEIKO CASE REFERENCE | |
| Bulova C8671032 | ||
| Citizen 4-450434 | CITIZEN CASE | |
| Citizen 4-471016 | CITIZEN CASE | |
| Citizen 4-831161 | CITIZEN CASE | |
| Citizen 4-L07933 | CITIZEN CASE | |
| Omega 2723 | OMEGA CASE USES CALIBER 420 | |
| Citizen 4-S45296 | CITIZEN CASE | |
| Citizen 4-Y56201 | CITIZEN CASE | |
| Citizen 4-Y61841 | CITIZEN CASE | |
| Citizen 81-6221 | CITIZE CASE REFERENCE | |
| ETA 1250 | BASCULE WINDING - BENRUS RESERVE | 7 x 8.5 |
| Omega 13914 | OMEGA USES CALIBER 481 | |
| Omega 14371 | OMEGA CASE - USES CALIBER 510/511 | |
| Seiko 4206-0660 | SEIKO CASE REFERENCE | |
| Omega 2723 | OMEGA CASE USES CALIBER 420 | |
| Omega 3920 | OMEGA CASE USES CALIBER 240 | |
| Omega 596.0073 | OMEGA CASE REFERENCE | |
| Rolex 400 | ROLEX MECHANICAL MOVEMENT | 7.75 |
| Seiko 4206-0660 | SEIKO CASE REFERENCE | |
| Seiko 4522-7000 | SEIKO CASE REFERENCE | |
| Citizen 4-450434 | CITIZEN CASE | |
| Seiko 50A | 21,600 BPH 7JL DSS | 11.5 |
| Seiko 5Y39-5120 | ||
| Seiko 7T32-7F49 | ||
| Seiko 9300-7008 | SEIKO CASE REFERENCE | |
| Seiko A557-506A | SEIKO CASE REFERENCE | |
| Seiko V233-555A | ||
| Seiko V337-7000 | SEIKO CASE REFERENCE | |
| Seiko V729-600M | SEIKO CASE 08/12/98 |
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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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