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Mainspring
For Cortebert 307
1.20 x 0.085 x 230 x 7.5 mm
Height (H): 1.2mm
Thickness (T): 0.085mm
Total Length (TL): 230mm
Barrel Diameter (BD): 7.5mm
End Type: Manual
To look for similar mainsprings that exactly match a specific dimension, select it from the links above.
GR Approximation
This mainspring does not have a GR reference. The following GR mainsprings are the closest fit, when values differ the exact value is shown brackets for reference:
Movement Listing
This mainspring is used by the following movements:
| Movement | Description | Ligne |
|---|---|---|
| A. Schild 1665 | AUTOMATIC DIRECT CENTER SECOND-CALENDAR | 11.5 |
| Omega 591.231 | OMEGA CASE USES CALIBER 1387 | |
| Bulova C969353 | BULOVA CASE | |
| Citizen 4-082893 | CITIZEN CASE | |
| Citizen 4-F51456 | CITIZEN CASE | |
| Citizen 8500A | QUARTZ CRYSTRON-ANALOG-DAY & DATE-DSS | 8.75 |
| Elgin 994 | 25 JLS | |
| Frey QF#61101/2 | 10.5 | |
| Omega 591.231 | OMEGA CASE USES CALIBER 1387 | |
| Seiko 2C20-5960 | SEIKO CASE REFERENCE | |
| Seiko 6309-9000 | SEIKO CASE REFERENCE | |
| Seiko Y710-4020 | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| Bulova C969353 | BULOVA CASE |
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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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