![Jaeger LeCoultre® calibre # 886 balance cock screw](http://perrinwatchparts.com/cdn/shop/products/LC-8855121_24f53678-c236-4b32-9c55-652816d9b524_600x600.png?v=1697249308)
Jaeger LeCoultre® balance cock screw, part # 5121, calibre # 886
balance cock screw to fit Jaeger LeCoultre® calibres: 885, 885S, 886, 886S
* 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.