Three-quarter rotorA special winding rotor in the LANGEMATIK. Its diameter is more than 25% smaller than that of the movement, so it does not conceal the balance wheel while its motion is being observed through the sapphire-crystal caseback. |
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Three-quarter rotorA special winding rotor in the LANGEMATIK. Its diameter is more than 25% smaller than that of the movement, so it does not conceal the balance wheel while its motion is being observed through the sapphire-crystal caseback. |
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