Casio watch glitch...?

I have casuo watch AWG-101. This watch has atomic time, it recieves a sognal from coubtries across the world to set its time. I am usually connected to Germany's 77.5 mhz station. I pressed the adjust (top left) mode (bottom left) and forward (bottom right) all at the same time and the screen went all white or coloured... Then i press the forward (bottom right) and it changes to another pattern. I press it again and it shows 4765, press it again it displays -02, press it again and it says BER, which means berlin. But the real question is what do the 4765 and-02 mean?