![Jaeger LeCoultre® calibre # K831 crown wheel core](http://perrinwatchparts.com/cdn/shop/products/LC-480423_1e88814f-7b49-4492-a360-76c275bcac25_600x600.png?v=1697246103)
Jaeger LeCoultre® crown wheel core, part # 423, calibre # K831
crown wheel core to fit Jaeger LeCoultre® calibres: 10ROL, 480, 800, 810, K830, K831
* 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.