Detailed with clean, modern lines, this leather-clad winder uses patented technology to keep your automatic watch precisely wound. An integrated storage compartment adds another layer of utility. 10-second start delay with 900 TPD (turns per day) bi-directionally Patented rotation programs, including intermittent rotation with pre-programmed pause and sleep phases Versatile cuff fits bigger and heavier watches (up to 52mm case) and locks the cuff into the rotator drum for a secure fit Runs on AC power (universal adapter included) or AA batteries (not included) Wood/leather Imported