I can imagine owning that watch and going back in time. People think ya got a standard old pocket watch till you open it up and BAM :Looky at me Im Mr. Future man"...Ok so that is stupid..but the watch is cool
There's a movie deal in there somewhere if you can hone the idea. Hell, they made Click, didn't they?
Future Man and the Watch of Power
Dude, Wheres My Battery?
A Clockwork Watch
Cavewatch starring Ringo Starr