When I do wristbands I like using two pieces of leather for a few reasons.
1.) I can dye the inner leather and use my logo stamp(branding,branding,branding)
2.) I don;t like having the sueded side of the leather exposed. When i dye out some nice 2/3oz rawhide I wax rub the leather with an old canvas bank change bag that has been infused (rubbed with bees wax and then melted some) with bees wax and make the braclet/watch band smooth with a nice waxy finish.
3.) It does make the leather thicker. Often I have found awesome pieces of garment or thiner weight leather that was just too wimpy for the "Meaty" wristbands and watch bands that I like to make. For me and the customers that buy from me the "weight" and solid feel of the pieces I make are appreciated.
I've included a couple of photos for your reference.
One thing about watch bands is you need to measure the side straps of the watch when its closed. If you measure the side straps when its open, they are too short. Does that make sense?
Plus I like to lace. Single loop lace goes good on most of the pieces I make. I like using the Mexican Round (ie; watchband) makes the wristband even heavier and cooler to look at.
I use barge mostly because of the fumes it produces. But I have found that a good by product of the fumes is its a killer bond on the leather.
I've created some other prototype bands in the past without sewing or lace and they looked cool and lasted only a little while.
So if you don't want to stitch or lace your work together you will need to put yer brain on(I usually put the glue away when I want to do this) and engineer something that is cool and functions. Work on the function part first. Remember necessity fuels the design.
Good Luck to ya!