1PRECISE ADJUSTMENT: Watch accessories extension rod allows for easy and precise adjustment of the watch time, making the process simple and easy. 2APPLICATION: Suitable for 057 157 mechanical movements, perfect replacement for old or broken movement winding stem rod. 3ERGONOMICAL: The ergonomic design of the Watch crown spring bar ensures a comfortable grip for smoothly and precise operation. 4WATCH REPAIR TOOL: Whether you are a professional watchmaker or a DIY enthusiast, this mechanical movement handle is an essential tool for your watch repair needs. 5METAL: The Winding stem extender is made of metal and is resistant to abrasion and tearing to ensure long term use. 1 xWatchWindingStemRod