Since Fossil do not list their instructions under model numbers it is difficult to be sure that you rmodel still exists but if you go to their web site for instructions http://www.fossil.co.uk/webapp/wcs/stores/servlet/ContentView?langId=10&storeId=32553&catalogId=20002&page=instructions
(click on this link to go there) and you will see some instructions for various big tic watches and you can select the one that suits yours.
The only one that I could find that had a single button above the winder used it to cahnge the colour. Pressing this button for 2 seconds will change the colour to "alternating" and the same again will produce a fixed colour. Perhaps this will make the change of display you need.
Often with watches, you need to use a pair of tweezers to short the battery case to the chassis ((often marked "ac"). This seems to be a re-set function, although I have never found an explanation for the need to do this.
If all else fails, look up their contact details and speak to them about your problem.