Young Town 12888 High Torque Quartz STEP Movement 23.5mm shaftYoungtown Model 12888SMC This is a Genuine Young Town High Torque Quartz Electronic Movement mechanism with the STEP movement. Perfect replacement for most Young Town High Torque movements.**High Torque movements are used on clocks that have hands larger than 12″ in length, heavy hands or on large and wide movements.*** The High Torque movements are characterized by a lack of the seconds hands, they have a threaded metal shaft on top of the movement for the minute hands.New Stock directly from the manufacturer. Unit comes with rubber gasket, washer and nut and top cap. CE and RoHS Certification Color: Black; Size: 2-3/16″ x 2-3/16″ x 5/8″ Total shaft length: 15/16″, bolt diameter: 5/16″ Shaft Lengths:Hour: 3/16″, Screw(Top): 1/8″Battery: 1x AA battery (Battery is not included) Unit is professionally tested prior to shipping. Guaranteed against DOA. USA Seller! fast, SAME DAY shipping with the TRACKING NUMBER. **Young town manufactures the 12888 series in various models, this specific model is the 12888SMC. Please check the dimensions of this movement prior to purchase to verify the dimensions. ***This movement will not work on Iron clocks. Control #: 1115114***