This clock is designed to measure times of 3 different places of the world. The clock houses 3 movements, thus the 3 dials work independently, you can set whatever time zones you prefer. - Raw material: 3mm shiny black acrylic board and 6+18mm plywood boards were used - Manufacturing process: the dial and the housing of this particular clock is laser cut from the acrylic and the plywood boards, the finishing (polishing, painting) is made by hand. The surface of the housing is painted white. - The movement: is silent (non-ticking), second hand sweeps around. It runs with 3pcs AA type 1.5V battery (not included in the package). The minute hands are plastic in black and white. - Dimensions: size: 12x37cm (4" x 14") depth: 3.7cm (1") weight: 0,5kg (1lb) This product is made to order, usual manufacturing time is ~1 week. Check out the one dial version of this clock: The Minimalist