Two Corner Connector for Accuratic Cubic Expandable Modular Watch Winder Virtually silent operation, four winders with the corner connectors. 14 different TPD (Turns Per Day) settings, 600 to 2160 by 120 TPD increments between each TPD. Hourly rotation cycles with intermediate rest time. Rotates CW, CCW or Bidirectional Custom designed optimal 5-6 turns per minute gearbox with Japanese Mabuchi motor