Dhorcas (#014) 3/4" Threaded Motor and Long 12" Hands, Quartz Clock Movement Kit for Replacement FAST SHIPPING... get it in 2-4 business day Total shaft length: 28mm / 1 1/16in. Motor size: 2 2/16" x 2 2/16" x 5/8" Threaded shaft length: 19.5mm / 3/4in. Quiet, smooth sweep second hand motion. Precise degree is high