Sprout Quartz Corn Resin and Cloth Casual Watch, Color:Black (Model: ST/3000BKBKBK) Bamboo dial, mercury free battery, Quartz movement Vegetable dyed black organic cotton strap Corn resin case and buckle Large size, white sweep second hand, printed arabic numerals and indexes; Luminous hands, printed outside minute and 24hr tracks Case diameter: 43 mm