We have the clock, since October 2013. From one day to the next (or rather, overnight) about two weeks before she went to four hours, even several days. One way to set the time there is not so (obviously). Take out and reinserting the battery did not change this. Suddenly the clock began - after a re-inserting the battery - completely to spin: the pointer turned for hours, as they searched for the right time. It had no choice but to completely rauszunehmen the battery. If the clock so but returned to the manufacturer must submit, although the always me - terribly annoyed - not only because of costs, but due to the time expenditures.
