Features: The clock can be automatically synchronized with the official UK MSF Time.Quality long-life quartz movement. Ideal for replacing defective units or for creating your own personalized clock projects. Energy efficient. Accurate timing. The core coil has high magnetic permeability, low specific resistance and energy saving. Suitable for repairing, replacing, or making a watch. Quartz crystal frequency: 32.768KHz, run time accuracy: ± 30sec / month (1.5V DC, 25 ° C), power consumption: less than 190μA (1.5V DC), working voltage: 13V to 1.7V. Operating temperature: -10 ° C to 50 ° C, nominal voltage: 1.5 V, battery life (specifications): Approximately one year (UM-3), output torque of the second hand: ≤0.6 gf-cm (1.5 V ), Output torque of minute hand: ≤ 30 gf-cm (1.5 V). Hose size: approx. 56 x 56 x 19mm / 2.20 x 2.20 x 0.75 inch, shaft length: approx 17mm / 0.67 inch, thread length: 17mm / 0.67 inch, suitable for 5 mm thick clock panel. The clock can be automatically synchronized with the official UK MSF Time.Quality long-life quartz movement. Ideal for replacing defective units or for creating your own personalized clock projects. Energy efficient. Accurate timing. The core coil has high magnetic permeability, low specific resistance and energy saving. Suitable for repairing, replacing, or making a watch. Quartz crystal frequency: 32.768KHz, run time accuracy: ± 30sec / month (1.5V DC, 25 ° C), power consumption: less than 190μA (1.5V DC), working voltage: 13V to 1.7V. Operating temperature: -10 ° C to 50 ° C, nominal voltage: 1.5 V, battery life (specifications): Approximately one year (UM-3), output torque of the second hand: ≤0.6 gf-cm (1.5 V ), Output torque of minute hand: ≤ 30 gf-cm (1.5 V). Hose size: approx. 56 x 56 x 19mm / 2.20 x 2.20 x 0.75 inch, shaft length: approx 17mm / 0.67 inch, thread length: 17mm / 0.67 inch, suitable for 5 mm thick clock panel.