This is a multi-function mechanical watch timegrapher, it has multi-function such as rate deviation, amplitude and polarization calibration. This tool can be widely used in your daily watch repairs or use it at the watch repairs shop.Features:Portable Size&Easy to Carry: This mechanical watch timegrapher has portable size and you can put it into your worktable easily or carry it with you to share with your friends and families.Large Display Screen: This mechanical watch timegrapher has a large display screen for you to see the data more clearly, give you a better using experience.Mulit-function Tool: This tool can test rate deviation, amplitude, polarization, lift angle, cycle for you.Easy to Operate: This mechanical watch timegrapher is easy to operate, there are six different directions can be adjust by rotating according to your needs.Preferred Material: The base is made of aluminium alloy material and has the characteristics of strong corrosion resistance.Specifications:Colour: BlackMaterial: plastics+aluminium alloyVoltage: 100-240VRate deviation measuring: 999s/dAccuracy: 1.0s/dAmplitude measuring: 100~360Polarization: 0-9.9msMeasuring direction: 1-6Plug Type:EU Plug,it applies to Indonesia, Germany, France, Spain, Italy and so onPackage Contents:1 x Mechanical Watch Timegrapher with Base1 x PlugOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.