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Mainspring
For Seiko 7C21-0A21
1.20 x 0.100 x 320 x 9.0 mm
GR Reference #: GR2921
Height (H): 1.2mm
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 |
|---|---|---|
| Lemania 5140 | TIMER 1/100 1 TURN 3 SECONDS | 18 |
| Benrus HS19 | 28,800 BPH ELECTG DSS CALD DAY/DATE | 12.5 |
| Benrus HS19 | 28,800 BPH ELECTG DSS CALD DAY/DATE | 12.5 |
| Bulova C4114 | BULOVA CASE REFERENCE | |
| Bulova C877049 | BULOVA CASE REFERENCE | |
| Bulova C977342 | ||
| Bulova N2895 | BULOVA CASE REFERENCE | |
| Omega 611.035 | OMEGA CASE USES CALIBER 483 | |
| Citizen 4-201841 | CITIZEN CASE | |
| Citizen 4-266943 | CITIZEN CASE | |
| Citizen 4-274164 | CITIZEN CASE | |
| Citizen 4-363817 | CITIZEN CASE | |
| Seiko 2320-6730 | SEIKO CASE REFERENCE | |
| Citizen 4-650174 | CITIZEN CASE | |
| Citizen 4-664001 | CITIZEN CASE | |
| Citizen 4-201841 | CITIZEN CASE | |
| Citizen 4-721217 | CITIZEN CASE | |
| Citizen 4-796900 | CITIZEN CASE | |
| Citizen 4-G12226 | CITIZE CASE REFERENCE | |
| Citizen 4-S46128 | CITIZEN CASE | |
| Citizen 9220A | QUARTZ DIGITAL | |
| Citizen AC-5902 | CITIZE CASE REFERENCE | |
| Doxa ETA 1201 | ETA 1201 | 5.25 x 8.5 |
| Dugena 604 | 10.5 | |
| Enz 152 | PIN LEVER | 10.5 |
| Eterna 600 | REGULAR AND SWEEP SECOND | 10.5 |
| Lemania 5140 | TIMER 1/100 1 TURN 3 SECONDS | 18 |
| Omega 111.0041 | OMEGA CASE USES CALIBER 540 | |
| Omega 2796 | OMEGA CASE USES CALIBER 244 | |
| Omega 611.035 | OMEGA CASE USES CALIBER 483 | |
| Omega 6673 | OMEGA CASE USES CALIBER 620 | |
| Orient K1710 | QUARTZ ANALOG DSS CALD | |
| Pulsar V403 | ||
| Rolex 161 | 5 x 7 | |
| Seiko 1600-3130 | SEIKO CASE REFERENCE | |
| Seiko 2320-5170 | SEIKO CASE REFERENCE | |
| Seiko 2320-6730 | SEIKO CASE REFERENCE | |
| Seiko 2620-0039 | SEIKO CASE REFERENCE | |
| Seiko 2E20-6210 | SEIKO CASE REFERENCE | |
| Seiko 5A70-5330 | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| Seiko 6106-8180 | SEIKO CASE REFERENCE | |
| Seiko 6309-711A | SEIKO CASE REFERENCE | |
| Seiko 7320-5969 | SEIKO CASE | |
| Seiko 7830-6000 | SEIKO CASE REFERENCE | |
| Seiko 7T11-0AD0 | SEIKO CASE REFERENCE COSERVE 2005 | |
| Seiko V657-X011 | MODEL# PJN161X | |
| Seiko Y102-6040 | PULSAR CASE REFERENCE | |
| Seiko Y401-5170 | SEIKO CASE. | |
| Seiko Y482-X001 | PULSAR CASE MODEL PTJ02AX | |
| Seiko Y590-5020 | PULSAR CASE REFERENCE | |
| Seiko Y770-5070 | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| Seiko Y786-5029 | PULSAR 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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