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Mainspring
For Unitas 251
2.10 x 0.180 x 450 x 15.0 mm
Height (H): 2.1mm
Thickness (T): 0.18mm
Total Length (TL): 450mm
Barrel Diameter (BD): 15mm
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 C864013 | ETA 555.421 DIAL# 83665 | |
| Bulova C864013 | ETA 555.421 DIAL# 83665 | |
| Bulova C867108 | 6392.10 HAT Y142B | |
| Bulova C867176 | BULOVA CASE REFERENCE | |
| Citizen 35-1571 | CITIZE CASE REFERENCE | |
| Citizen 4-271947 | CITIZEN CASE | |
| Citizen 4-324188 | CITIZE CASE REFERENCE | |
| Bulova C867108 | 6392.10 HAT Y142B | |
| Citizen 4-664442 | CITIZEN CASE | |
| Citizen 6N30 | ||
| Citizen 4-S01621 | CITIZE CASE REFERENCE | |
| Citizen 4-S06355 | CITIZE CASE REFERENCE | |
| Citizen 4-S16954 | CITIZEN CASE | |
| Citizen 4-S80563 | CITIZEN CASE | |
| Citizen 4-T000967 | CITIZEN CASE REFERENCE | |
| Citizen 42-9015 | CITIZE CASE REFERENCE | |
| Citizen 6N30 | ||
| Citizen EC0022 | CITIZE CASE REFERENCE | |
| Cortebert 665 | FOR SWEEP SECOND USE CORTEBERT 667 | 10.5 |
| Longines CLL0320 | ||
| Seiko 2P20-5630 | SEIKO CASE REFERENCE | |
| Seiko 6349-500A | SEIKO CASE REFERENCE | |
| Seiko 9570-5200 | SEIKO CASE REFERENCE | |
| Seiko D229-503A | SEIKO CASE REFERENCE | |
| Seiko V220-0AC0 | SEIKO CASE REFERENCE COSERVE 2005 |
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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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