The watches have a dial aperture at the position of the balance wheel to show that the movement inside is mechanical.

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Instead of its standard position behind the movement in back of the watch, the 14mm-diameter wheel floats above the movement and dials, encased under the domed crystal on its face.

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The steering wheel deploys back into the driving position when the car is started, the angle of which can be pre-set and saved by the driver.

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