Feature:1. High precise clock mechanism movement provides accuracy time and high reliability for watchmaker.2. Suitable for repairing, replacing or making watches, special designed for professional watch repairing workers.3. Clock movement designed for desk clock movement replacement, wonderful and practical accessory.4. High quality plastic material with good wear resistance ability is not easy to corrode and safe to use.5. Powered by 1pc AA battery (not included), high sensitivity and easy and convenient for installation.Specification:Item Type: Clock MovementMaterial: Plastic Size: Approx. 55 x 55 x 25mm / 2.2 x 2.2 x 1in (Length x Width x Height) Thread Length: Approx. 5mm / 0.2in(manual measurement, please allow a little error)Battery: 1 x AA battery (not included)Applicable People: Watch maintenance professionalsApplication Scenario: Suitable for the replacement of the clock movement.Package List:1 x Clock Movement