![Jaeger LeCoultre® calibre # 490 crown wheel core](http://perrinwatchparts.com/cdn/shop/products/LC-460423_0259738c-fc38-4fac-b9fb-66ebbf19cf7c_600x600.png?v=1697240880)
Jaeger LeCoultre® crown wheel core, part # 423, calibre # 490
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.