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Mainspring
For Seiko 9721-5020
1.50 x 0.100 x 320 x 9.0 mm
GR Reference #: GR4123
Height (H): 1.5mm
Thickness (T): 0.1mm
Total Length (TL): 320mm
Barrel Diameter (BD): 9mm
End Type: Manual
To look for similar mainsprings that exactly match a specific dimension, select it from the links above.
Movement Listing
This mainspring is used by the following movements:
| Movement | Description | Ligne |
|---|---|---|
| A. Schild 1017 | 18,000 BPH | 5.25 x 6.25 |
| A. Schild 1555N | 11.5 | |
| Bulova C833938 14K | BULOVA CASE REFERENCE | |
| Bulova C869153 | BULOVA CASE REFERENCE | |
| Seiko 7421-003B | SEIKO | |
| Bulova C899175 | ||
| Certina 29-0631 | 21600 BPH CHONO CALENDAR | 13 |
| Citizen 4-E62976 | CITIZE CASE REFERENCE | |
| Citizen 37-4725 | CITIZE CASE REFERENCE | |
| Citizen 4-156099 | CITIZEN CASE | |
| Citizen 4-163150 | CITIZEN CASE | |
| Citizen 4-221150 | CITIZEN CASE | |
| Citizen 4-242882 | CITIZEN CASE | |
| Citizen 4-282922 | CITIZE CASE REFERENCE | |
| Certina 29-0631 | 21600 BPH CHONO CALENDAR | 13 |
| Citizen 4-405846 | CITIZEN CASE | |
| Citizen 4-631765 | CITIZEN CASE | |
| Citizen 4-841328 | CITIZEN CASE | |
| Citizen 4-C90822 | CITIZEN CASE | |
| Citizen 4-E62976 | CITIZE CASE REFERENCE | |
| Citizen 4-F52509 | CITIZEN CASE | |
| Citizen 4-631765 | CITIZEN CASE | |
| Citizen 4-K12835 | CITIZEN CASE | |
| Citizen 4-S53728 | CITIZEN CASE | |
| Helbros 8527 | ||
| Citizen AC-5912 | CITIZE CASE REFERENCE | |
| Citizen ST-3315 | CITIZE CASE REFERENCE | |
| Citizen 4-405846 | CITIZEN CASE | |
| Concord 262 OLD | 7.75 | |
| Dugena 110 | 5.75 x 6.75 | |
| Dugena 110 | 5.75 x 6.75 | |
| Hamilton 9330 | HAMILTON CASE REFERENCE | |
| Hanhart 366 | ||
| Citizen 4-F52509 | CITIZEN CASE | |
| Helbros 8527 | ||
| IWC 401 | INCA-19800 BPH-SWEEP SECOND | 10 |
| Jeambrun 26D | DIRECT CENTER SECOND | 11.5 |
| Omega 111.0065 | OMEGA CASE USES CALIBER 620 | |
| Omega 2842 | OMEGA CASE USES CALIBER 455 | |
| Omega 511.422 | OMEGA CASE USES CALIBER 730 | |
| Omega 595.060 | OMEGA CASE USES CALIBER 1450 | |
| Seiko 4N21-0900 | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| Omega AA5732 | ||
| Seiko 7T42-7A2A | SEIKO CASE REFERENCE | |
| Seiko 4N21-0900 | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| Citizen 4-841328 | CITIZEN CASE | |
| Seiko 5A70-0630 | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| Seiko 5A74-5560 | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| Seiko 5P31-5E1A | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| Seiko 6730-5940 | SEIKO CASE REFERENCE | |
| Seiko 7421-003B | SEIKO | |
| Seiko 7N00-5C50 | ||
| Seiko 7T42-7A2A | SEIKO CASE REFERENCE | |
| Seiko 7T92-0DJ0 | SEIKO CASE REFERENCE COSERVE 2005 | |
| Seiko A781-400C | SEIKO CASE REFERENCE | |
| Seiko V232-5280 | PULSAR CASE REFERENCE | |
| Seiko V501-6R50 | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| Seiko V701-2190 | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| Seiko W357-4A10 | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| Seiko Y131-6300 | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| Seiko Y481-1790 | ||
| Wittnauer CRL8221 | WITTNAUER CASE REFERENCE |
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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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