Enlarged drum 71mm deep and 77mm wide easily holds the largest of timepieces. Snug fit cuff connects into drum your watch stays put. Backlit LCD display. Turns per day that YOU select! Start with 300 TPDs up to in increments of 50 upto 1,200 TPD. 57 possible settings! Easy bi-directional control. Rotation countdown display Technically advanced circuit board switch increases battery life by 30%, Constructed with sturdy wood frames. Lockable glass front cover, Mains or Bayttery Dimensions: 7.75H x 17.75W x 7.75D".