![Jaeger LeCoultre® calibre # 12A crown wheel core](http://perrinwatchparts.com/cdn/shop/products/LC-476423_600x600.png?v=1697229471)
Jaeger LeCoultre® crown wheel core, part # 423, calibre # 12A
crown wheel core to fit Jaeger LeCoultre® calibres: 12A, 12AD, 476, 481
* 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.