This watch winder will rotate your automatic watch to set direction and set Turns Per Day (TPD) to keep it wound. It has five different TPD settings: 650, 900, 1200, 1500, 1800, with intermediate rest cycles to eliminate potential stress on watch movement. It rotates clockwise counter-clockwise, or alternates in between. The winder will repeat its cycle every day, without intervention (as long as it is on). Functions: