These are the Results or Summary. This is where the raw numbers are plugged into various formulae and the results of the testing are shown. Note that not all of the figures needed to make the final calculations appear in the center portion of the certificate. Each of the seven results must fall within COSC guidelines for the movement to pass. If even one result is outside the guidelines, the movement does not pass.
Manufacturers are free to re-submit movements that fail.
The bottom section of our sample certificate is set forth below. A description of the tests and calculations follows. The first figure is mean daily rate in the different positions. This is the average rate over the first ten testing days. COSC determines the mean daily rates by subtracting the time indicated by the movement 24 hours earlier from the time indicated on the day of observation.