Feature:1. High quality plastic materials can ensure maximum durability and a long service life.2. With battery, allow you do not have to buy batteries, which is convenient for you to use.3. Compact packaging makes it is easy for you to carry and storage, it is also convenient to transport.4. Important and professional watch replacement accessories which is reliable to use.5. Easy to install, you can easily replace the movement by yourself, which saves you expensive repair costs.Specification:Item Type: Watch MovementMaterial: PlasticBattery Type: SR621SW Button Battery (Included)Battery Capacity: 18mAhUse: For the replacement of watch movement Package List:1 x Watch Movement1 x Pin1 x Button Battery