This watch tool is precisely regulate the speed of your timepiece, ensuring accurate timekeeping for both professional use. Crafted from metal, this tool long durability and reliability, making of any watch repair . Perfect for both amateur horologists and professional watchmakers who require precise control over their watch's . Whether you're adjusting a vintage or a modern watch, this tool provide the accuracy need for fine tuning in various setting. Allows for easy storage and portability, making it convenient for repair or adjustments home.