1Easy Replacement: This movement is mainly used to replace old or broken watch movement, simple and convenient. 2Alloy Material: Using excellent alloy materials, rustproof and oxidation resistance, not easy to deform. 3Portable Design: The wristwatch movement is small and portable, convenient to store and carry, and can be installed and replaced at any time. 4For Professional Repair: Professional tools for watchmakers and watch repairers, easy to replace to save expensive repair costs. 5Built in Battery: The movement is equipped with a 14.5mAh SR616SW battery, so there is no need to worry about the battery not matching.