Description: Watch Movement Adjustment Tool: Designed for adjusting the speed of various watch movements, including models for 3135, 2500, 8500, 5601. Essential for any watch repair tool kitMetal Construction: Crafted from quality metal to ensure long term durability and reliable performance during intricate watch adjustmentsPrecision: This Watch Movement Tool allows for accurate regulation of your watch's movement speed, ensuring accurate timekeeping and optimal performanceCompact and Handy Design: The Watch Adjusting Tool is designed to be compact and easy to handle, making it convenient for both professional watchmakers and hobbyists alikeComplete Package: Comes with 1 Watch Movement Speed tool included in the package, ready to assist you in maintaining your watches' accuracy effortlessly Specification: Material: Metal Size Chart: 9cmx2.6cm/3.54inchx1.02inch Package Includes: 1Watch Repair Movement Tool Note: Please allow slightly errors 1-2cm differences due to manual measurement.