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Mainspring
For Seiko W850-4020
1.50 x 0.135 x 340 x 11.0 mm
GR Reference #: GR4207
Height (H): 1.5mm
Thickness (T): 0.135mm
Total Length (TL): 340mm
Barrel Diameter (BD): 11mm
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 4-227131 | CITIZE CASE REFERENCE | |
| Omega 7160 | OMEGA CASE USES CALIBER 620 | |
| Seiko 9320-5000 | SEIKO CASE REFERENCE | |
| Seiko 2P21-5A60 | SEIKO CASE REFERENCE | |
| Seiko 6309-720E | SEIKO CASE REFERENCE | |
| Seiko 6539-5030 | SEIKO CASE REFERENCE | |
| Seiko 6539-5030 | SEIKO CASE REFERENCE | |
| Seiko 7S36-5000 | SEIKO CASE 971201 | |
| Seiko 9320-5000 | SEIKO CASE REFERENCE | |
| Seiko H021-8021 | SEIKO CASE 951201 | |
| Wittnauer 6FHF |
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Similar Mainspring Listing
This mainspring is similar to that used by the following movements. When values differ the exact value is shown brackets for reference:
| Movement | Mainspring | GR Reference # |
|---|---|---|
| Recta G10 | 1.45 (1.50) x 0.120 (0.135) x 320 (340) x 10.5 (11.0) mm | |
| Recta G6 | 1.45 (1.50) x 0.120 (0.135) x 320 (340) x 10.5 (11.0) mm |
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