Description: Measurement: hand length: total hour hand length: approx. 80mm (3.15 inches); Total minute hand length: approx. 110mm (4.33 inches), total second hand length: Approx. 100mm(3.94inch) Size: total shaft length: 17mm (0.66inch); Thread length: 8.7mm (0.34inch); Jump Second Radio Clock Movement type, suitable for products with panel thickness of about 5 mm thick and it is suitable for the panel diameter of about 240-300mm. Wide application: they are fit for cross-stitch, three-dimensional embroidery, craft clock, frame-less draw clock, and specially suitable for DIY quartz wall clock replacement movement parts, etc. Good DIY clock supply: suitable for repairing, replacing the broken parts of a clock or serving as good handwork material to make a clock by yourself. Body size: 66 x 56 x 19 mm, Movement Model: HD1688-17WWVB American version,Hand Model: HR9415 + 903. Specification: Material: Aluminium, Plastic. Match power: this clock movement replacement just need 1 piece of 1.5V AA battery( battery is not included in this package) Attachment: Gold hexagonal nut, gold sauce, black pad HR 1688-14 jump second radio clock movement is a second-level movement, life more than 2 years, all through ROHS certification. Model: HR9415 Black Time + 903 All Black Seconds Package Includes: 1 Piece Quartz Wall Clock Movement