Features: Quartz clock movement, accurate for time; with 3 metal hands, metal hooks can repair, replace or make your own clock. These replacement parts are very suitable for different styles of clock frames and are very suitable for repairing, replacing, or manufacturing clocks by yourself. Several kinds of hands with different styles and lengths: This kit comes with 3 pairs of clock hands with different styles and lengths for you to choose from, which is very suitable for making and repairing clocks, and also has a decorative effect. Accurate and quiet: The long-axis clock mechanism provides extremely high accuracy and reliability, and the motion is equipped with no ticking sound, thus providing you with a quiet environment. Suitable for DIY quartz wall clocks, wooden wall clocks, metal wall clocks, craft clocks, frameless wall clocks, replacement of bad clocks, etc. Specifications: Movement size: 56x56x19mm/2.20x2.20x0.74in Night 22:00 stop to the next day 6:00 automatically open signal reception Radio clock movement crystal frequency: 32.768KHz average day difference: ± 1 second/day called a second-level movement Radio wave movement parameters. Receiving frequency: 77.5KHz Battery / life: AA / within 1 year Working voltage: 1.25-1.7V Operating temperature: -5℃-+55℃ Storage temperature: -20℃-+70℃ Normal consumption current (1.5V): <150μA Receiving time: 3-8min Receiving current: ＜100μA Set-up for time after receiving the letter: max.4min Walk for time noise: ＜32dB Antenna: built-in ferrite core Receiving times: 12x/day for Peak current: 7mA Sensitivity: ＜80μV/for m Second-hand torque (1.5v): ≥180μNm About the hand Model: HR9412+045 Size: from the center of the hand to the top of the round hole, the hour hand 65mm/2.55in, the minute hand 108mm/4,25in, the second-hand 100mm/3.93in, thread height 8mm/0.31 Material: hour and minute hand aluminum, 0.4mm/0.015in thickness, second-hand copper + aluminum Package Includes: 1 set DIY clock kit note: Please allow 1-2cm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.