Jaeger LeCoultre® yoke spring (set spring), part # 440, calibre # 910
yoke spring (set spring) to fit Jaeger LeCoultre® calibres: 910, 911
* 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.