The 4-unit watch winder is covered in a lush pebble grained black faux leather with polished chrome hardware and lockable cover. The flip down frame has a tempered glass window that beautifully displays your timepiece while winding. The interior is lined in a luxurious textured silver silk fabric with large removable cuffs to accommodate watches up to 52mm in size. Powered by batteries with battery indicator on/off light or choose the optional AC power adapter included. Equipped with clockwise, counter-clockwise and bi-directional rotations with start/delay mode. Winding operation from 300-1200 TPD (turns per day) with back-lit LCD display.