Description: 【High Precision Watch Calibrator】It measure daily differences, polarization, swing, frequency, dotted line, sound waveform, Rising angle setting, anti-magnetization. 【Data Transfer Terminal】Features a USB-C interface, can be connected to , laptops and desktop computers with the Wins system. Uploads data to a computer, highly accurate and easy to use, ready to use when connected to a computer. 【Durable Material】Made of durable pp and metal materials that ensures longevity and reliability. 【With Sliding Clips】The dial can be held in place for measurement and the removable jaws can be adjusted to suit all dial sizes. Can measure dial diameters ranging from 1.8cm to 6cm. 【Professional Watch Maintenance And Repair Tool】This calibrator is an instrument used to calibrate mechanical watches. It measures the time accuracy and error of a mechanical watch and performs calibration to ensure the accuracy and stability of the mechanical watch. Size Chart: 9.8cmx6.5cmx5cm/3.86inchx2.56inchx1.97inch Package Includes: 1 Watch Calibration Tool Note: Please allow slightly errors due to manual measurement and different monitors.