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Jaeger-LeCoultre

Here you have: 15 Days Power Reserve, a Torque Meter, and a Minute Repeater.

 

The Torquemeter allows you to check if during its long power reserve, the torque is not too weak. If it is, just give the crown one or two turns, and it will go up.
Till " 5 ", it is good. Below, it is not.
Best,
Nicolas.

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