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Mainspring
For Seiko 8420B
1.20 x 0.100 x 300 x 9.0 mm
GR Reference #: GR2920
Height (H): 1.2mm
Thickness (T): 0.1mm
Total Length (TL): 300mm
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 |
|---|---|---|
| Brac 185 | 13.5 | |
| Seiko 2949-520B | SEIKO CASE REFERENCE | |
| Bulova C3983 | BULOVA CASE REFERENCE | |
| Bulova C871032 | BULOVA CASE REFERENCE | |
| Bulova C877137 | BULOVA CASE REFERENCE | |
| Citizen 4-Y64484 | CITIZEN CASE | |
| Bulova C888011 | BULOVA CASE REFERENCE | |
| Certina 300 | REGULAR AND SWEEP SECOND | 10.5 |
| Citizen EA1247 | CITIZE CASE REFERENCE | |
| Citizen 4-092635 | CITIZEN CASE | |
| Citizen 4-142021 | CITIZE CASE REFERENCE | |
| Citizen 4-150821 | CITIZEN CASE | |
| Seiko V783-0010 | SEIKO CASE 08/12/98 | |
| Citizen 4-297296 | CITIZEN CASE | |
| Certina 300 | REGULAR AND SWEEP SECOND | 10.5 |
| Citizen 4-330099 | CITIZEN CASE | |
| Citizen 4-351851 | CITIZEN CASE | |
| Citizen 4-C80410 | CITIZEN CASE | |
| Seiko VX82-0AM0 | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| Citizen 4-F60226 | CITIZEN CASE | |
| Seiko 2949-520B | SEIKO CASE REFERENCE | |
| Citizen 4-H01326 | CITIZEN CASE | |
| Citizen 4-S46829 | CITIZEN CASE | |
| Citizen 4-T002820 | ||
| Citizen 4-Y64484 | CITIZEN CASE | |
| Citizen BX-2108 | CITIZE CASE REFERENCE | |
| Citizen EA1247 | CITIZE CASE REFERENCE | |
| Elgin 582 | ELGIN 16S | |
| Elgin 968 | 17JL | 11.5 |
| ES 1100 | 18,000 BPH-17 JL DSS CAL SHOCK ADJ STUD | 12 |
| Omega 19029 | OMEGA CASE USES CALIBER 491/501 | |
| Favre Leuba 250 | DSS - DBL BBL | 10.5 |
| Felsa 281 | 21,600 BPH | 6.75 x 11 |
| Fontainemelon 69 | 18,000 BPH- | 6.75 x 8 |
| Felsa 281 | 21,600 BPH | 6.75 x 11 |
| Girard Perregaux 78.0 | 7.75 | |
| Citizen 4-150821 | CITIZEN CASE | |
| Kasper 1400 | DSS | 10.5 |
| Brac 185 | 13.5 | |
| Mauthe 17 | 1 DAY ALARM CLOCK | |
| Omega 19029 | OMEGA CASE USES CALIBER 491/501 | |
| Omega 511.539 | OMEGA CASE USES CALIBER 625 | |
| Omega 5324 | OMEGA CASE USES CALIBER 480 | |
| Omega 7970.. | OMEGA CASE REFERENCE | |
| Pulsar Y760A | QUARTZ-DIGITAL | |
| Recta 17L | ||
| Roamer 401 | 11.5 | |
| Seiko V533-7A90 | PULSAR CASE REFERENCE | |
| Seiko 1000-1010 | SEIKO CASE REFERENCE | |
| Seiko Y789-5050 | PULSAR CASE REFERENCE | |
| Seiko 1100-3479 | SEIKO CASE REFERENCE | |
| Seiko 1400-8319 | SEIKO CASE REFERENCE | |
| Seiko 1N00-0DZA | SEIKO CASE REFERENCE | |
| Seiko 2949-520B | SEIKO CASE REFERENCE | |
| Seiko 4206-4001 | SEIKO CASE REFERENCE | |
| Seiko 5930-5190 | SEIKO CASE REFERENCE | |
| Seiko 5E21-6D40 | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| Seiko 5Y23-8A81 | SEIKO CASE. | |
| Seiko Y789-5050 | PULSAR CASE REFERENCE | |
| Seiko 7439-5010 | SEIKO CASE REFERENCE | |
| Seiko H448-5170 | SEIKO CASE REFERENCE | |
| Bulova C871032 | BULOVA CASE REFERENCE | |
| Seiko V533-7A90 | PULSAR CASE REFERENCE | |
| Seiko V783-0010 | SEIKO CASE 08/12/98 | |
| Seiko VX82-0AM0 | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| Seiko Y789-5050 | PULSAR CASE REFERENCE | |
| Seiko Y799-437B | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| Vulcain 48.1 | 5 x 7 | |
| Seiko 5930-5190 | SEIKO CASE REFERENCE | |
| Elgin 582 | ELGIN 16S |
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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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