Features: Experience precise timekeeping with original automatic mechanical movement, designed for accuracy and reliability without battery dependency. Crafted with electronic components and a noise design, this movement ensures long in any environment. Ideal for watchmakers, enthusiasts, and professional seeking a quality, maintenance friendly solution for clock repairs or builds. Effortlessly integrates into bedrooms, offices, or public spaces where and uninterrupted timekeeping are prioritized. compatibility with most clock designs and friendly mechanical make it a sustainable upgrade for modern households and workshops. Specifications: Component: Electronic components Color: As picture shown Size:approx. 7.8cm/3.07inch Package Includes: Main machine fully automatic mechanical movement × 1 Screwdriver × 1 note: Please allow 1-3cm error due to manual measurement. please sure you not mind before you bid. Due to difference between different monitors, the picture may not reflect the actual color.