![Jaeger LeCoultre® calibre # 414 mainspring](http://perrinwatchparts.com/cdn/shop/products/LC-415770_746ef920-4e17-483e-95d9-4fe00c74cff8_600x600.png?v=1697234079)
Jaeger LeCoultre® mainspring, part # 770, calibre # 414
mainspring to fit Jaeger LeCoultre® calibres: 17UOC, 17UOV, 414, 415, 429
* 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.