G Shock - Resetting to random times

[James1760]

Brought my 1st gshock this weekend and the thing is winding me up!

Now i would probebly say that the watch was broken, but given the amount of commands that can be given over 4 buttons it is proberbly just me thats doing something wrong.

So my problem i think is my Home city setting. every time i wake up (well during my 2 days of ownership) the time is incorrect. its not even incorrect by the hour, this morning it has been +4.10hrs

So i try and set the local timezone by doing the following..

Bottom left to get into time mode
Top left button to sync
Lower right button to select LON
at this point if i press the lower left again i should be able to select DST but instead it just starts the hand off anti clockwise.
The top right button also does nothining which i think is to set the timezone.
the only button that does work is the top left again which just sends the time back to what it was?

I did a manual time change yesterday but this morning it had reset that time.

should it be this difficult or could i have a duff Gshock?