Feature:1. EASY TO USE: This watch movement is simple and easy to use, and it is an exquisite watch repair accessory.2. SMALL AND CONVENIENT: Small and convenient, convenient to store and carry, and at the same time convenient to transport.3. HIGH QUALITY: This is a high quality watch movement, convenient and cost effective.4. PROFESSIONAL TOOLS: Professional tools for watchmakers and watch repairers save you expensive repair costs.5. ALLOY MATERIAL: The alloy material is durable and not easily deformed, can effectively resist oxidation and rust, and has a long service life.How to Use:Open the back cover of the watch, take out the original movement, put in the new movement, close the back cover of the watch, and then replace itSpecification:Item Type: Watch MovementProduct Material: AlloyMaximum Length of Movement: Approx. 22mm / 0.87inMovement Width: Approx. 22mm / 0.87inBattery Model: SR920SW (Shipped with Built in Battery)Battery Type: Button BatteryBattery Capacity: 40mAhNumber of Batteries: 1Purpose: Replacement of Watch Movement Package List:1 x Movement1 x Plastic Storage Box1 x HandlebarNote:Please allow 0‑1mm / 0‑0.04in error due to manual measurement. Thanks for your understanding.