I looked for a while trying to find an extremely simple clock face to where the lines and imagery didn't interfere with being able to see what time it was at a glance without having to hover my mouse over the dock.   Couldn't find one, so I made my own.   Hopefully you find it useful.  I included the PSD so you can make changes if you want.

Feel free to contact me if you have questions. www.danlefeb.com