Jaeger LeCoultre® calibre # P812 mainspring with brake spring

Jaeger LeCoultre® mainspring with brake spring, part # 771, calibre # P812

mainspring with brake spring to fit Jaeger LeCoultre® calibres: 812, K812, P812, 813, K813, P813

*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.