Quartz movements: seconds movement with high torque jump, drive long clock hands (10 mm to 450 mm) Movement size: total shaft length is 23 mm (9/10 inches), thread length is 15.2 mm (3/5 inches) , suitable for 9-13 mm (9/25 - 1/2 inch) watch board thick. 115mm (4.5 in); The minute hand is approximately 175 mm (7.0 inches); The second caps are approximately 7mm (0.3 inches) Packaging Detail: Includes hardware and 2 clock hands in a box with instructions. Make your DIY clock project a warm message: When you install it, please keep the hour and minute hands parallel in case you bend them