WOLF 460728 Blake Double Watch Winder with Storage, Black Pebble Handcrafted in genuine leather, 2 winding modules, 3 piece watch storage and travel case, 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