![Jaeger LeCoultre® calibre # 840 balance with flat hairspring, regulated](http://perrinwatchparts.com/cdn/shop/products/LC-840721_600x600.png?v=1697246733)
Jaeger LeCoultre® calibre # 840 balance with flat hairspring, regulated
$250.00
SKU LC-840721
Jaeger LeCoultre® balance with flat hairspring, regulated, part # 721, calibre # 840
balance with flat hairspring, regulated to fit Jaeger LeCoultre® calibres: 840
* 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.