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Mainspring
For Fontainemelon 21
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 4-140133 | CITIZE CASE REFERENCE | |
| Citizen 4-661257 | CITIZE CASE REFERENCE | |
| Citizen 4-L03407 | CITIZEN CASE | |
| Seiko 7750-5209 | SEIKO CASE REFERENCE | |
| Citizen 4-S23721 | CITIZE CASE REFERENCE | |
| Seiko 1230-5179 | SEIKO CASE REFERENCE | |
| Cortebert 286 | 11.5 | |
| Omega 16447 | OMEGA CASE - USES CALIBER 244/481 | |
| Citizen 4-140133 | CITIZE CASE REFERENCE | |
| Seiko 1000-3610 | SEIKO CASE REFERENCE | |
| Seiko 1230-5179 | SEIKO CASE REFERENCE | |
| Seiko 7750-5209 | SEIKO CASE REFERENCE | |
| Seiko Y480-7430 | PULSAR CASE REFERENCE | |
| Winton 15-8 | FONT 120 |
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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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