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Mainspring
For Unitas 158
1.10 x 0.110 x 290 x 9.5 mm
Height (H): 1.1mm
Thickness (T): 0.11mm
Total Length (TL): 290mm
Barrel Diameter (BD): 9.5mm
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 4-151950 | CITIZEN CASE | |
| Citizen 4-950658 | CITIZEN CASE | |
| Tudor 144 | ||
| Enicar 1290 | DIRECT CENTER SECOND | 13 |
| Omega 3623 | OMEGA CASE USES CALIBER 240 | |
| Parker 11E | ETA 900 | |
| Pulsar Y121A | QUARTZ ANALOG S.S. MVT TAP 10 STEM | 6.75 x 8 |
| Pulsar Y121A | QUARTZ ANALOG S.S. MVT TAP 10 STEM | 6.75 x 8 |
| Seiko 1100-7620 | SEIKO CASE REFERENCE | |
| Seiko 1271-5021 | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| Seiko 1271-5021 | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| Seiko 1F21-0J50 | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| Seiko 2C20-0364 | SEIKO CASE REFERENCE | |
| Seiko 7123-7139 | SEIKO CASE REFERENCE | |
| Tudor 144 |
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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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