Backlit LCD display screen powers on when control knobs or chrome plate is touched. Stays illuminated for 10 seconds. Rotation options - incrementally from 300-1200 turns per day. LCD screen provides a countdown of remaining rotations in daily cycle. Watch cuff has been designed to accommodate larger, heavier watches and will "lock" into the winder drum for a secure fit. Winder can turn clockwise, counter-clockwise, or bi-directional. Option to run the unit on 33V adapter (included) or D-cell batteries.