WOLF 456202 Viceroy Double Watch Winder with Cover and Storage, Black Viceroy Watch Winder - Silver textured faceplate, 2 winding modules, 3 piece watch storage and travel case, locking glass cover, lock in cuff Patented Innovation - Every WOLF winder counts the precise number of rotations. All other winder estimate the number of rotations. Fully controllable from 300 to 1200 turns per day - Clockwise, Anticlockwise and Bidirectional Battery or Power Option with Universal Power adapator 2 year Manufacturer warranty worldwide