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The
tourbillon cage and bridges are made from T5 titanium, since it
is ultra-lightweight and lends itself to hand-finishing better
than other grades of titanium or aluminum. Why is it that the
tourbillon cage should be light? Think of it this way: the tourbillon
cage (including the complete escapement) must stop and start several
times per second. In this case, whereby the Master Tourbillon
must start and stop eight times per second, lighter is certainly
better! |