8 Day Time Only is an 8 Day Time Only Mechanical Movement measuring 3 3/4" x 4 3/4" and 3 3/4" deep. The pendulum drop measures 18" from the center of the hand shaft to the tip of the pendulum. 8 Day Time Only can be used for school clocks, long drop regulators and store regulators. The movement has heavy brass plates with oil sinks and lantern pinions and hand shaft length of 2". 8 Day Time Only measures 45 mm from the hand shaft to the keyhole arbor. Need to purchase the suspension unit #77-522 (not included with movement.) Accessories can be purchased separately.