Measure the accuracy of your mechanical watch using this simple application from Mastersoft.Simply select the time period for the test using the top left buttons.

When the second hand on your watch reaches 0 click start.When your watch has covered the period that you are testing for click the stop button.You will then be given the accuracy of your watch and the amount of time gained or lost over fixed periods of an hour, a day, a month and a year.

The author is a big Rolex fan and thought he'd share this program with all you watch enthusiasts.An animated chronograph shows the position of the second hand.