Closure not properly fixed

I thought it was only positive that the closure was not easily solved here with those ugly push buttons, but almost infinitely by contract the both ends. Unfortunately, the closure löckert something repeatedly, so that the dial with me always slips through the net weight on the underside of the arm, which extremely annoys me. Otherwise, I think the clock very nice, only the dial seems to be minimal slip, the little hand is on the hour never exactly on the number ... but good for the price you can not really expect ...