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Mainspring
For Unitas 166
2.10 x 0.200 x 490 x 16.5 mm
Height (H): 2.1mm
Thickness (T): 0.2mm
Total Length (TL): 490mm
Barrel Diameter (BD): 16.5mm
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 |
|---|---|---|
| Citizen 4-093844 | CITIZEN CASE | |
| Citizen 4-106521 | CITIZEN CASE | |
| Citizen 4-274652 | CITIZEN CASE | |
| Citizen 4-311612 | CITIZEN CASE | |
| Citizen 4-917138 | CITIZEN CASE | |
| Citizen 4-917138 | CITIZEN CASE | |
| Citizen 4-C31079 | CITIZEN CASE | |
| Gruen 151 | MSPG 0X12X8.5 | 5.5 x 9.5 |
| Omega 16127 | OMEGA CASE - USES CALIBER 210/240 | |
| Omega 191.0099 | OMEGA CASE REFERENCE | |
| Seiko 7N43A | QUARTZ ANALOG DDSS CAL | |
| Seiko V220-6670 | 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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