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Mainspring
For Seiko 9721-8010
1.45 x 0.130 x 380 x 11.5 mm
GR Reference #: GR4011
Height (H): 1.45mm
Thickness (T): 0.13mm
Total Length (TL): 380mm
Barrel Diameter (BD): 11.5mm
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 |
|---|---|---|
| Citizen 4-212061 | CITIZEN CASE | |
| Seiko 2639-5000 | SEIKO CASE REFERENCE | |
| Citizen 51-2770 | CITIZE CASE REFERENCE | |
| Felsa 721 | 8.75 | |
| Seiko 2639-5000 | SEIKO CASE REFERENCE | |
| France Ebauches 7027 | QUARTZ ANALOG DSS CALD MOON PHASE | 8.75 |
| Junghans 674.00 | 6.75 x 8 | |
| Seiko 1E20-0590 | SEIKO CASE REFERENCE | |
| Seiko 2639-5000 | SEIKO CASE REFERENCE | |
| Seiko 4217-5050 | SEIKO CASE REFERENCE | |
| Junghans 674.00 | 6.75 x 8 | |
| Seiko 7N01-6C90 | SEIKO CASE REFERENCE COSERVE 2003/2004 |
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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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