How can I set the 3 inner dials? - Fossil Grant Chronograph Leather Watch - Brown - FS4813

the three dials are for three different time zones, there is no minutes or seconds.
to adjust the middle dial just push the small bottom which is located on the back side of the watch

If it is this pocket watch, then the crown (the bit you turn to wind the watch) has 3 positions. Position 1 is when the crown is pushed in all the way. Position 3 is when the crown is pulled out as far as it will go. In between position 1 and position 3 is a place where the crown will stop, this is position 2.
To set the day of the week, pull the crown out to position 3 to set the time. When you set the time, the bottom dial with also turn to set the hour on the 24 hour clock, if you turn the crown enough to cycle through a whole day the day of the week dial will also turn. Keep turning the crown until the time is set on the proper day of the week.
To set the date, pull the crown out to position 2, and turn it clockwise until the hand on the date dial points to the correct date.
Hope this helps!

The small bottom dial is seconds counter and there is no option to set or reset it as it is part of the main gear train - it just counts the seconds. Top right dial is 1/10 seconds counter and runs only when the chronograph function is engaged. One full circle indicates 1 second. Top left dial is 30 minutes counter and runs only when the chronograph function is engaged. One full circle indicates 30 minutes, two circles = 1 hour. The big centre seconds hand is actually Chronograph hand and runs only when the chrono function is engaged. So, the chronograph hand and two top dials works all together when chrono function is engaged. To start chrono: push upper button once. To stop chrono: push upper button again (once). To return all hands to zero: push lower button once. There is another option: if you already stopped chrono by pushing upper button, but want to continue counting without returning hands to zero, push the upper button once more and the counting will start from the point where it stopped. You can repeat this as many as you wish - it will count on and on, till you will stop it and reset to zero. Fine tuning of chrono hands can be made by pulling the crown half way out and while leaving in this position pushing and holding one of the push buttons (which one - depends on movement caliber). Watch has an tachymeter function as well (big inner ring). Learn how to use it by browsing through my Tips and Tricks- it is explained there. Rate me, please.

On Leap Years, the function dial is to be set to '0'.
Add one for each year after...
So, for 2011, set the function dial to '3' since it has been 3 years since 2008, the last leap year. Next year it should move/be set to '0' again since 2012 is a leap year.

I've seen some before I think they're just fake

Thank you for contacting FixYa.
Pull the crown out to position No. 3, turn clockwise to go to hour and minutes hands; the small dial showing days of the week will move, and the 24-hour dial will also move correspondingly.To set the date, pull the crown out to position No. 2 and turn clockwise until you have set the desired date; push the crown back to position No. 1.

Multifunction watch:Pull the crown out to position No. 3, turn clockwise to go to hour and minutes hands; the small dial showing days of the week will move, and the 24-hour dial will also move correspondingly.To set the date, pull the crown out to position No. 2 and turn clockwise until you have set the desired date; push the crown back to position No. 1.

one of them is the seconds hand of your watch, this sub dial will keep on moving even if the watch is not used as a stop watch. the other 2 sub dials are for the stop watch function. one is for tracking the minutes and the other is for hours. the big seconds hand will only work if you use the stop watch function. you can reset your stop watch to zero by pressing the pusher located at the 4 o,clock location of your watch.

You just remove one of the links. I don't think there's a way to set the inner dials. I think it's just for show.

smash it with a hammer

If you don't have the instruction manual you can go to this link and on the right side of the page you can type in the model number. (it will tell you where to locate the model number) I tried this for a Bulova from 1998 and it worked but I don't know how far it will go back but it's worth a try.
http://www.bulova.com/service/instructions.aspx