Jaeger LeCoultre® calibre # 11UO crown wheel - factory number 5132 - Fits calibers: 11UO, 413 Heuer® (stopwatch) timer crowns and accessories This multi-branch key is a

This multi-branch key is a handy tool for clock makers to wind clocks with one key

Equipped with with an ergonomic handle

Jaeger LeCoultre® winding pinion guard screw

8/0 is smallest (very fine)

This movement features 10

Jaeger LeCoultre® calibre # 11UO crown wheel - factory number 5132 - Fits calibers: 11UO, 413 Heuer® (stopwatch) timer crowns and accessories This multi-branch key is aJaeger LeCoultre crown wheel factory number 5132, part # 420, calibre # 11UO crown wheel factory number 5132 to fit Jaeger LeCoultre calibres: 11UO, 413 *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.