![Jaeger LeCoultre® calibre # 240 regulator spring](http://perrinwatchparts.com/cdn/shop/products/LC-240359_600x600.png?v=1697232571)
Jaeger LeCoultre® regulator spring, part # 359, calibre # 240
regulator spring to fit Jaeger LeCoultre® calibres: 240, 240/1, 240/2, 245
* 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.