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Mainspring
For Gruen 431
1.40 x 0.130 x 340 x 11.0 mm
GR Reference #: GR3750
Height (H): 1.4mm
Thickness (T): 0.13mm
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 4-215249 | CITIZE CASE REFERENCE | |
| Bulova C3694 | ACCUTR CASE REFERENCE | |
| Citizen 4-215249 | CITIZE CASE REFERENCE | |
| Citizen 4-H01296 | CITIZEN CASE | |
| Citizen 4-S07220 | CITIZE CASE REFERENCE | |
| ETA 2365 | AUTOMATIC-DIRECT CENTER SECOND OFFSET CENTER | 7.75 |
| Gruen 624SS | 10.5 | |
| Omega 7891 | OMEGA CASE USES CALIBER 480 | |
| Seiko Y643-5110 | PULSAR CASE REFERENCE |
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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 # |
|---|---|---|
| IWC 63 12.5 | 1.40 x 0.140 (0.130) x 290 (340) x 11.0 mm |
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