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Mainspring
For Seiko 8420-6420
1.50 x 0.150 x 420 x 12.5 mm
GR Reference #: GR4258
Height (H): 1.5mm
Thickness (T): 0.15mm
Total Length (TL): 420mm
Barrel Diameter (BD): 12.5mm
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 |
|---|---|---|
| Belforte 12D1B8 | ||
| Citizen 4-021151 | CITIZEN CASE | |
| Citizen 4-095979 | CITIZE CASE REFERENCE | |
| Omega 111.0066 | OMEGA CASE USES CALIBER 620 | |
| Citizen 4-107594 | CITIZEN CASE | |
| Citizen 4-820398 | CITIZEN CASE | |
| Citizen 4-F51308 | CITIZEN CASE | |
| Seiko 6349-5420 | SEIKO CASE REFERENCE | |
| Citizen 4-F61168 | CITIZEN CASE | |
| Crc 80 | 18,000 BPH PIN LEVER BASCULE WDG | 6.75 x 8 |
| Elgin 8565 | ||
| General 868 | DSS AUTO BALL BEARING | 11.5 |
| Judex 961.101 | QUARTZ ANALOG DSS | 6.75 x 8 |
| Longines 4V | 5.75 x 6.75 | |
| Omega 111.0066 | OMEGA CASE USES CALIBER 620 | |
| Omega 2262 | OMEGA CASE USES CALIBER 230 | |
| Seiko 1100-4629 | SEIKO CASE REFERENCE | |
| Seiko 4N00-0340 | SEIKO CASE 08/12/98 | |
| Seiko 4500-8010 | SEIKO CASE REFERENCE | |
| Seiko 4N00-0340 | SEIKO CASE 08/12/98 | |
| Seiko 5A70-3B10 | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| Seiko 6349-5420 | SEIKO CASE REFERENCE | |
| Seiko 7N29-6C40 | SEIKO CASE 951201 | |
| Citizen 4-820398 | CITIZEN CASE | |
| Seiko V400-0060 | SEIKO CASE REFERENCE | |
| Citizen 4-820398 | CITIZEN CASE | |
| Seiko V782-0110 | SEIKO CASE 08/12/98 | |
| Seiko V789-6A90 | SEIKO CASE 951201 | |
| Seiko W670-4010 | SEIKO CASE 971201 | |
| Seiko Y520-5A50 | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| Vacheron Constantin 1050 | 19,800 BPH 20 JEWELS | 6.75 x 5.5 |
| Wittnauer 61 | 5.5 x 10 |
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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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