Abstract: A timepiece includes a plurality of coaxially mounted disks which are driven with different periods, at least some of the disks having a time indicator area which is visible through one or more transmissive areas on one or more disks which lie over it. In a preferred embodiment, one of the disks is provided with three concentric annular zones and is driven with a period of sixty seconds. The outermost zone has discrete reflective areas which are visible through discrete transmissive areas in an overlying annular zone. The inner zones have discrete transmissive areas through which discrete reflective areas in two concentric annular zones on two respective lower disks are visible. The lowermost disk is driven with a period of twelve hours and is visible through a central transparent area of an intermediate disk which is driven with a period of sixty minutes.