- Size Specifications: Total shaft length is 17mm (0.66 inch) with a thread length of 8.7mm (0.34 inch). This Jump Second Radio Clock Movement is designed for panels approximately 5mm thick and is compatible with panel diameters ranging from 240mm to 300mm. - Body Dimensions: The movement body measures 66 x 56 x 19 mm. It features the HD1688-17WWVB American version movement model, with hands identified as HR9415 + 903. - Ideal for DIY Projects: This clock movement is perfect for repairing or replacing broken clock parts. It serves as an excellent material for crafting your own custom clock, allowing for creativity and personalization. - Hand Measurements: The hour hand measures approximately 80mm (3.15 inches) in length, the minute hand is around 110mm (4.33 inches), and the second hand measures approximately 100mm (3.94 inches). Applications: 1. Repairing Wall Clocks: Restore your broken wall clock to its original functionality with this reliable movement, ensuring accurate timekeeping. 2. Custom Clock Creation: Use this movement as a foundation for building a unique clock that matches your decor style, enhancing your home or office space. 3. Hobby Projects: Ideal for clock-making enthusiasts, this movement allows for hands-on engagement in creating personalized timepieces. This clock movement combines functionality, compatibility, and ease of use, making it a valuable addition to your DIY clock projects.