Jaeger LeCoultre® alarm mainspring, part # 7771, calibre # 217

alarm mainspring to fit Jaeger LeCoultre® calibres: 19RLEC, 211, 217, 220

*Perrin Supply Ltd is independent of and not affiliated with or sponsored by Jaeger LeCoultre®. Jaeger LeCoultre® warranty does not apply to parts supplied byPerrin Supply Ltd. Using generic parts may devalue your watch.