I just acquired this HDD watch made by colleague whose hobby is watchmaking. He recycles on 4GB HDD microdrives into watches with a nice geek strap looking like a printed circuit board.
hddwatch.jpg
Here is his web site.
You can see more of his watches on this indiegogo site.
Since the indiegogo project is completed if you want to order send a mail to info@hddwatches.com.