Is the vertigo-inducing Vortex a watch or a work of architecture? The rectangular case is made entirely of titanium whilst the transparent flashes created by six 3D sapphire crystals on the case and its translucent dial give the heady impression of controlled, conscious and calculated chaos. But the answer is yes, this is a watch. Fuelled by a twin-barrel self-winding HL2.0 calibre, it has a unique and fascinating way to display the hours and minutes. The half-trailing hours appear in a display on the left; the retrograde minutes scale a semi-circular track chased by a white-tipped luminescent hand. The right side of the dial features the power reserve indicator (up to 40 hours) whose red marker is the only colour to disrupt the otherwise grey, dark yet bright piece. Price: 160,000 CHF
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