Hermle Quartz Chiming Clock Movement #2115 Westminster Ave-Maria Max Dial Thickness of 1/4" for Howard Miller or Ridgeway Case size: 4-3/8"W x 2-3/8"H x 1-1/8"D Minute hand shaft is 9/16" overall, max dial thickness is 1/4" Requires 2 'C' cell batteries (not included) This movement is German Made. It features Westminster and Ave Maria chimes which can be switched to play every 1/4 hour or on the hour only. It can also be switched to silent and night silent.