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Mainspring
For Seiko 8420-7730
1.60 x 0.100 x 340 x 9.5 mm
GR Reference #: GR4488
Height (H): 1.6mm
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 |
|---|---|---|
| Seiko 8C23-504A | SEIKO CASE REFERENCE | |
| A. Schild 1542 | 13 | |
| Bulova C2958 | BULOVA CASE REFERENCE | |
| Citizen 4-409850 | CITIZEN CASE | |
| Citizen 4-754051 | CITIZE CASE REFERENCE | |
| Citizen 4-Y62104 | CITIZEN CASE | |
| Citizen 4-831403 | CITIZEN CASE | |
| Citizen 4-H09017 | CITIZEN CASE | |
| Citizen 4-K03437 | CITIZEN CASE | |
| Citizen 4-K03437 | CITIZEN CASE | |
| Citizen 4-S23721 | CITIZE CASE REFERENCE | |
| Citizen 4-Y62104 | CITIZEN CASE | |
| Rolex 68248 | ROLEX CASE REFERENCE | |
| Citizen 49-2507 | CITIZE CASE REFERENCE | |
| Citizen DX-5114 | CITIZE CASE REFERENCE | |
| ETA 2336 | 8.75 | |
| Seiko 7N01-0BA0 | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| ETA 2822R | 21600 BPH-DSS-AUTO-BALL BEARING-CAL W/CORR | 11.5 |
| Omega 145.0012-67 | OMEGA SPEEDMASTER PROFESSIONAL | |
| Tissot 2414 | 28,800 BPH-17 JL-INCA-ADJ. STUDHOLDER | 5.75 x 6.75 |
| Omega 153.0002 | OMEGA CASE USES CALIBER 672 | |
| Rolex 68248 | ROLEX CASE REFERENCE | |
| Seiko 1421-5460 | SEIKO CASE REFERENCE | |
| Seiko 5J22-0C40 | ||
| Seiko 7750-5199 | SEIKO CASE REFERENCE | |
| Seiko 7N01-0BA0 | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| Seiko 8C23-504A | SEIKO CASE REFERENCE | |
| Seiko F231-4030 | SEIKO CASE REFERENCE | |
| Seiko V322-X005 | PULSAR CASE MODEL PHE04AX | |
| Seiko Y150-0C80 | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| Seiko Y150-5E70 | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| Tissot 2414 | 28,800 BPH-17 JL-INCA-ADJ. STUDHOLDER | 5.75 x 6.75 |
| UTC-Unitime 36CN | 17 JEWEL-DSS-AUTO-CAL-ADJ-STUD HOLD-SHOCK | 12 |
| Wittnauer FR210-Q115 | WITTNA 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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