Alarm Clock very loud clock silently and relatively accurate operation could be better

However, the clock is completely silent (no ticking and no other sounds) and is fairly accurate for an analog clock.

However, deductions there during the operation: you can adjust the alarm time only in 10-minute increments (though the alarm clock would ansich ± 1-2 minutes exactly) and I find this lock that you can only reset the time, but can not imagine, pointless. If I min the alarm to 10. must imagine, because I just minutes the next day only to 10. have to get up later, I have to almost turn around the pointer unnecessarily. Since the wheel on the back would be an accidental change to a later time almost impossible without this barrier. For these unnecessary restrictions there a star deduction.