Jaeger LeCoultre® calibre # 11UO crown wheel - factory number 5132 - Fits calibers: 11UO, 413 Heuer® (stopwatch) timer crowns and accessories 8/0 is smallest (very fine)

8/0 is smallest (very fine)

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

Tall Case Striking Rack Assembly is a steel with a brass arm striking rack assembly that measures 2 3/8" from the mounting post to the top of the teeth

part number 423

This movement features 10

Jaeger LeCoultre® calibre # 11UO crown wheel - factory number 5132 - Fits calibers: 11UO, 413 Heuer® (stopwatch) timer crowns and accessories 8/0 is smallest (very fine)Jaeger 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.