The Revolutionary Double Watch Winder w/ Storage in Mahogany stain (Model CS2si-M) is constructed of hardwood and finished with a rich dark Mahogany stain. The grain of the natural wood shows beautifully through the high-gloss protective finish. Like our outher Classic-series watch winders, this automatic watch winder is entirely handcrafted with a great deal of detail and care. The Revolutionary Model CS2i-M watch winder has three user-selectable winding routines: clockwise, counterclockwise and alternating routines. A microprocessor located within the case controls these routines and is able to gently wind virtually all automatic/self-winding watches. This unit runs on an AC Adaptor (included).