Mechanics are at the heart of Harry Winston's Project Z, which uses the firm's proprietary Zalium alloy for its cases. This latest and eleventh rendition carries on from its predecessors, with a skeletonised dial serving as a functional backdrop for off-centre hours and minutes, a large date at 6 o'Clock and, in the centre, the shuriken that relays seconds as it rotates. However avant-garde its architectural design, Project Z11 isn't a concept watch but a timepiece whose 42-mm diameter and 10.60-mm height are perfectly adapted to the wrist.