Jaeger LeCoultre® winding stem, part # 401, calibre # 839
winding stem to fit Jaeger LeCoultre® calibres: 838, 839, 849
* 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.