Watch Tuner Timegrapher is a mechanical (automatic or manual winding) watch testing application. It displays a frequency diagram of the watch and measures rate, beat error, amplitude and beats per hour.
The application uses the build-in or headsets microphone to record audible ticks of the watch.
Use this application in a quiet environment. Any ambient noise can affect result accuracy. Complete silence is the best however noise cancelling algorithm can help to eliminate not very loud sounds.The recommended way to record the ticks is to touch the crown of the watch with the headset (earplugs) microphone.
If you dont need the frequency diagram, look at Watch Tuner app.
If you want to test only the rate accuracy, try Watch Tuner Lite.
If you have any questions, suggestions or any troubles using this app - dont hesitate to write me.