![Jaeger LeCoultre® calibre # K490 crown wheel core](http://perrinwatchparts.com/cdn/shop/products/LC-460423_293a8d07-9041-418f-bfdc-cc475b401745_600x600.png?v=1697241017)
Jaeger LeCoultre® crown wheel core, part # 423, calibre # K490
crown wheel core to fit Jaeger LeCoultre® calibres: 9OL, 9OLN, 460, 490, K490, 491
* H. & W. Perrin Company Limited is independent of and not affiliated with or sponsored by Jaeger LeCoultre®. Jaeger LeCoultre® warranty does not apply to parts supplied by H. & W. Perrin Company Limited. Using generic parts may devalue your watch.