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Mainspring
For Zentra 21
1.60 x 0.110 x 320 x 10.0 mm
Height (H): 1.6mm
Thickness (T): 0.11mm
Total Length (TL): 320mm
Barrel Diameter (BD): 10mm
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 |
|---|---|---|
| Bulova 2902.27 | ||
| Citizen 4-168909 | CITIZEN CASE | |
| Citizen 4-951328 | CITIZEN CASE | |
| Citizen 4-G13672 | CITIZEN CASE | |
| Citizen 4-H05364 | CITIZEN CASE | |
| Citizen 4-Y66771 | CITIZEN CASE | |
| Bulova 2902.27 | ||
| Enicar 692B | 21,600 BPH-W/O SEC-INCA | 6.75 |
| Seiko 1320-5289 | SEIKO CASE REFERENCE | |
| Omega 7744 | OMEGA CASE | |
| Seiko 1320-5289 | SEIKO CASE REFERENCE | |
| Seiko 2P20-5F80 | SEIKO CASE REFERENCE | |
| Seiko 7460A |
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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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