One of the holes is kind of loose. It did not hold the clamp. I have the holes facing up to put in the clamps. After the clamps were put in, I turn it over and one of the clamps fell. In oder to use it, I have to leave this wrench up side down and have the watch on top of it. The dial which is for adjusting the size was not giving a tight grip. After adjusting to the size of the back of the watch, the dial moves when I turn the wrench to open the watch.