Features: Easy to install, convenient to use. 1x AA battery required. (Not included) Replacement of old, damaged movement. Made of high-quality material, durable, has a long service life. Total shaft length: 14.5 mm, thread height 7 mm, suitable for passing through 4 mm thick panels. Specifications: Material: ABS Size: Approx. 56x56.7x16 mm/2.20x2.23x0.63 inches Parameters for solar movement: Operating voltage: 1.3v to 1.7v Timekeeping accuracy: 25 sec/month (1.5V DC. 25) Power consumption: Less than 150A (1.5V DC.) Operating temperature: -10 to 60 Battery life (specifications): Approx. one year (UM-3) Weight: Approx. 25 g/piece Second hand output torque: 0.6 gf-cm (1.5 V) Minute hand output torque: 30 gf-cm (1.5 V) Requirements for hands: Second hand length/weight: 130 mm, 2 g Minute hand length/weight: 160 mm, 6 g Second hand unbalanced torque: 0.15 gf-cm Minute hand unbalanced torque: 6 gf-cm Note: 1x AA battery required. (Not included) Please allow 1-2 cm errors due to manual measurement, make sure you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Clock Movement