HENSE Regulator Mechanical Wind-Up Mantel Chime Clocks with Clear Doors on Front & Back Side HD13 (Brown) Hardwood Solid wood case.Features glass crystal that reveals the intricate, polished silver-finished skeleton movement Gear movement open for viewing--easily clean and good maintenance Dial includes circular brushed silver-finished numeral ring with black Roman numerals and spade hands Mechanical Manual Hand-winding,no battery needed..---make an environmentally-friendly life Dimensions: 13.1inch height x 8.3 inch width x 5.5 inch depth