Jaeger LeCoultre® balance staff, part # 723, calibre # K812
balance staff to fit Jaeger LeCoultre® calibres: 812, K812, P812, 813, K813, P813
* 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.