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Mainspring
For Seiko W921-402A
1.05 x 0.090 x 220 x 6.5 mm
Height (H): 1.05mm
Thickness (T): 0.09mm
Total Length (TL): 220mm
Barrel Diameter (BD): 6.5mm
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 |
|---|---|---|
| ETA 956.032 | QUARTZ-ANALOG-W/O SEC. HANDS SEE BELOW | 7.75 |
| Assortments MSA99.047 | SCREW-ON CROWNS WITH THREADED FRICTION TUBES TAP 10 | |
| Bulova C863181 | BULOVA CASE REFERENCE | |
| Citizen 4-822579 | CITIZEN CASE | |
| Citizen 4-943155 | CITIZEN CASE | |
| ETA 956.032 | QUARTZ-ANALOG-W/O SEC. HANDS SEE BELOW | 7.75 |
| Seiko 8523-0140 | SEIKO CASE REFERENCE | |
| Roamer 375 | PIN LEVER-DIRECT CENTER SECOND | 10.5 |
| Seiko 7N43-8171 | SEIKO CASE REFERENCE | |
| Assortments MSA99.047 | SCREW-ON CROWNS WITH THREADED FRICTION TUBES TAP 10 | |
| Seiko 8523-0140 | SEIKO CASE REFERENCE | |
| Seiko P116-0AA0 | 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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