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Mainspring
For Seiko 2P21-5B7A
1.50 x 0.100 x 340 x 9.5 mm
GR Reference #: GR4124
Height (H): 1.5mm
Thickness (T): 0.1mm
Total Length (TL): 340mm
Barrel Diameter (BD): 9.5mm
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 |
|---|---|---|
| Bulova C865071 | BUL | |
| Roamer 444 | BASCULE W/O SECOND-SHOCK | 6.75 x 8 |
| Citizen 38-0326 | CITIZE CASE REFERENCE | |
| Citizen 39-6125 | CITIZE CASE REFERENCE | |
| Citizen 4-078721 | CITIZEN CASE | |
| Citizen 4-214901 | CITIZE CASE REFERENCE | |
| Citizen 4-957121 | CITIZE CASE REFERENCE | |
| Citizen 4-F52142 | CITIZEN CASE | |
| Citizen 4-F92837 | CITIZEN CASE | |
| Citizen 4-S30469 | CITIZEN CASE | |
| Citizen 4-S99787 | CITIZEN CASE REFERENCE | |
| Citizen 40-2117 | CITIZE CASE REFERENCE | |
| Citizen EA2134 | CITIZE CASE REFERENCE | |
| Elgin 346 5-1/2L | ETA 2620 17 JEWEL SWEEP SECOND, AUTO | 5.5 |
| Hamilton 9892 | HAMILT CASE REFERENCE | |
| Hanhart 1026 | TIMER | 19.5 |
| Kasper 1450 | DSS AUTOMATIC | 11.5 |
| Omega 191.126 | OMEGA CASE - USES CALIBER 1365 | |
| Piaget 19 | ETA 210.001/959.001 | |
| Roamer 444 | BASCULE W/O SECOND-SHOCK | 6.75 x 8 |
| Seiko 4326-5029 | SEIKO CASE REFERENCE | |
| Seiko 5Y30-5359 | SEIKO CASE REFERENCE | |
| Seiko 8420-5869 | SEIKO CASE REFERENCE | |
| Tissot B906 | TISSOT 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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