Generic Mainspring to fit Jaeger LeCoultre® calibre # 489 Fits calibers: 489, 489/1, 601, 814, K814, P489 DASSARI Sold as 1 piece or

Sold as 1 piece or in a case of 6

Maximum opening is 57mm

tube diameter to case 3

Adec® crystal reference A54-11930

Omega® 30 T 2

Generic Mainspring to fit Jaeger LeCoultre® calibre # 489 Fits calibers: 489, 489/1, 601, 814, K814, P489 DASSARI Sold as 1 piece orJaeger LeCoultre mainspring generic, part # 770 generic, calibre # 489 mainspring generic to fit Jaeger LeCoultre calibres: 489, 489 1, P489, 601 mechan, 814, K814 *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.