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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:
GR Reference # | Mainspring |
---|---|
GR3767 | 1.40 x 0.140 x 340 (330) x 11.5 mm |
This mainspring is used by the following movements:
This mainspring is similar to that used by the following movements. When values differ the exact value is shown brackets for reference:
Movement | Mainspring | GR Reference # |
---|---|---|
IWC 63 12.5 | 1.40 x 0.140 x 290 (330) x 11.0 (11.5) mm |
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