Wolf Designs have invested countless hours developing the ultimate way to keep your watch ticking while it's not on your wrist. European craftsmanship and patented technologies stand behind all our watch winders. The Wolf Designs Module 2.1 Heritage Collection Watch Winders make an ideal companion for self-winding watches because it simulates the wrist action, rotating the timepiece as if it were being worn and keeping it wound and ready to wear at a moment's notice. Each winder is constructed with a sturdy wooden frame in a black smooth finish material (outside); black dobby twill fabric faceplate; shiny chrome hardware, tempered glass front cover and clasp closure. The enlarged drum easily holds and rotates the larger, heavier watches while the snug fit "lock-in" cuff will keep your watch securly in place. The patented rotation program provides 900 turns per day and intermittent rotation with pause and sleep phases pre-programmed.