Found this by pure coincidence. Normally I don't like to combine watch fetish with ordinary porn, but here's a porn actress wearing a huge watch:
http://www.brandibelle.com/t1/pps=comei ... jb1860.htm
There is a sample video available as you can see. Warning! This is adult porn, just so you know! There are two video clips on Youtube as well:
http://www.youtube.com/watch?v=r7BfOJXFMO8
http://www.youtube.com/watch?v=2lBm6jRpedA