![Jaeger LeCoultre® calibre # K830 upper end-piece screw](http://perrinwatchparts.com/cdn/shop/products/LC-4805311_a21614e4-05d8-49be-a84e-7ffde770a7e2_600x600.png?v=1697246012)
Jaeger LeCoultre® upper end-piece screw, part # 5311, calibre # K830
upper end-piece screw 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.