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Mainspring
For Unitas 157
1.70 x 0.120 x 320 x 10.5 mm
Height (H): 1.7mm
Thickness (T): 0.12mm
Total Length (TL): 320mm
Barrel Diameter (BD): 10.5mm
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 |
|---|---|---|
| Bulova C852016 | BULOVA CASE REFERENCE | |
| Certina 121 | 5.25 | |
| Bulova C875106 | STYLE #46L49 | |
| Citizen 4-163915 | CITIZEN CASE | |
| Certina 121 | 5.25 | |
| Citizen 20-8108 | CITIZE CASE REFERENCE | |
| Citizen 4-043359 | CITIZEN CASE | |
| Citizen 4-098609 | CITIZE CASE REFERENCE | |
| Citizen 4-098609 | CITIZE CASE REFERENCE | |
| Bulova C875106 | STYLE #46L49 | |
| Citizen 4-163915 | CITIZEN CASE | |
| Citizen 4-163915 | CITIZEN CASE | |
| Citizen 4-164806 | CITIZEN CASE | |
| Citizen 4-224086 | CITIZEN CASE | |
| Bulova C852016 | BULOVA CASE REFERENCE | |
| Citizen 4-283961 | CITIZEN CASE | |
| Citizen 4-831322 | CITIZEN CASE | |
| Citizen 4-945298 | CITIZEN CASE | |
| Citizen 20-8108 | CITIZE CASE REFERENCE | |
| Citizen 4-E60957 | CITIZEN CASE | |
| Citizen 4-F90788 | CITIZEN CASE | |
| Citizen 4-L09316 | CITIZEN CASE | |
| Seiko 1N01-5B09 | SEIKO CASE REFERENCE | |
| Citizen 47-8786 | CITIZE CASE REFERENCE | |
| Citizen AD-2122 | CITIZE CASE REFERENCE | |
| Certina 121 | 5.25 | |
| Citizen JJ0052 | CITIZE CASE REFERENCE | |
| Seiko 8305B | ||
| ETA 956.411 | QUARTZ DSS CAL W/CORR | 8.75 |
| Omega 396.0918 | OMEGA CASE USES CALIBER 1332 | |
| Citizen AD-2122 | CITIZE CASE REFERENCE | |
| Omega 6735 | OMEGA CASE USES CALIBER 620 | |
| Ricoh 540 | QUARTZ-ANALOG- | 7.75 x 6.75 |
| Rolex 16523 | ROLEX CASE REFERENCE | |
| Seiko 0922-8060 | SEIKO CASE REFERENCE | |
| Seiko 1421-5040 | SEIKO CASE REFERENCE | |
| Seiko 1N01-5B09 | SEIKO CASE REFERENCE | |
| Seiko 2706-7090 | SEIKO CASE REFERENCE | |
| Seiko 6430-5220 | SEIKO CASE REFERENCE | |
| Seiko 7009-8940 | SEIKO CASE REFERENCE | |
| Seiko 7A28-7080 | SEIKO CASE REFERENCE | |
| Seiko 7N43-8330 | ||
| Seiko 8305B | ||
| Seiko 8J41-0A20 | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| Seiko 8N51-6010 | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| Seiko A129-5000 | SEIKO CASE REFERENCE | |
| Seiko V306-6110 | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| Seiko Y643-0030 | PULSAR CASE REFERENCE | |
| Seiko Y709-4020 | PULSAR CASE REFERENCE | |
| Ultra 904 | DIRECT CENTER SECOND | 11.5 |
| Winton 71-17 | AS 1580 |
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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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