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Mainspring
For Unitas 312
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 |
|---|---|---|
| Citizen 4-227042 | CITIZEN CASE | |
| Belstaff 8B4L | 15 & 17JL-21600 BIH-DSS-SHOCK-ADJ | 8.75 |
| Citizen 4-180330 | CITIZEN CASE | |
| Seiko 5P31-5200 | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| Citizen 4-202686 | CITIZEN CASE | |
| Citizen 4-227042 | CITIZEN CASE | |
| Citizen 4-267273 | CITIZEN CASE | |
| Seiko 4N00-6140 | SEIKO CASE 951201 | |
| Citizen 4-409175 | CITIZEN CASE | |
| Citizen 4-470371 | CITIZEN CASE | |
| Citizen 4-660102 | CITIZE CASE REFERENCE | |
| Citizen 4-851340 | CITIZEN CASE | |
| Citizen 4-G13851 | CITIZEN CASE | |
| Citizen 4-L04730 | CITIZEN CASE | |
| Citizen 75-3025 | CITIZE CASE REFERENCE | |
| Citizen AF-2002 | CITIZE CASE REFERENCE | |
| ETA 803.111 | QUARTZ MOVEMENT | 8.75 |
| Fontainemelon 701-2N | CALENDAR | 11.5 |
| Seiko 1100-7730 | SEIKO CASE REFERENCE | |
| Seiko 5930A | QUARTZ-ANALOG-6 JLS. | 10 |
| Seiko 2949-0100 | SEIKO CASE REFERENCE | |
| Seiko 4N00-6140 | SEIKO CASE 951201 | |
| Seiko 5930A | QUARTZ-ANALOG-6 JLS. | 10 |
| Seiko 5P31-5200 | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| Seiko V733-7A50 | PULSAR CASE REFERENCE | |
| Seiko Y150-5F70 | 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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