The Heritage Module 2.1 winders will keep all your watches ticking with a newly designed watch cuff, patented rotation program and a rotation setting of 900 turns per day. Each winder is encased in black faux leather with glass front cover plus chrome clasp closures and control knobs. Features: • Rotation: 10 second start delay, 900 TPD (Turns Per Day), patented rotation programs - Intermittent rotation with pause and sleep phases pre-programmed. Also comes with optional 12-hour delay setting. Double the amount of TPD by selecting bi-directional • Directional Settings: Clockwise, Counterclockwise and Bi-directional • Watch Cuff: The cuff has been designed to fit bigger and heavier watches (up to 52mm case). The new design "locks" the cuff into the rotator drum for a secure fit. • Battery Option: Option to run the unit on AC power (universal adapter included) or D-Cell/Lithium batteries (not included). • Storage: 1 winding module • Material: Smooth vegan leather • Other: Glass cover