Jaeger LeCoultre® calibre # 497 balance with flat hairspring, regulated Fits calibers: 497, 497/1, 817, 817/1 omega 490 Omega® 1611 B

Omega® 1611 B

Abrasive Bands - 1/4" Diameter - Coarse - Box of 100 Glue bonded

Lemania 19N20

Cadmium and Indium free

08 x 254 (10")

Jaeger LeCoultre® calibre # 497 balance with flat hairspring, regulated Fits calibers: 497, 497/1, 817, 817/1 omega 490 Omega® 1611 BJaeger LeCoultre balance with flat hairspring, regulated, part # 721, calibre # 497 balance with flat hairspring, regulated to fit Jaeger LeCoultre calibres: 497, 497 1, 817, 817 1 *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.