13 Precision Screwdrivers Watch Case Holder Opener Tool This is a new adjustable watch case opener Opens and closes screw back water resistant watches without scratching Includes 12 patterned pins, 4 sets in all, for a variety of case backs Hinged wooden storage case, measures about 7 1/8" x 3 1/4" x 1 1/2" (179 x 82.5 x 38 mm) It measures approximately 5 1/2" (140 mm)