Welcome to the Astronomy.com forums. You may find some of the information on astronomy and amateur astronomy presented in my post entitled Advice for Beginning Amateur Astronomers under General Stargazing helpful.
http://cs.astronomy.com/asy/observing/f/1/t/49111.aspx (previous posts will no longer hot-link here since the last forum upgrade)
As Jeff mentioned, NGC 457 (the Owl or ET Cluster) will be rather small at 10x. M103 is even smaller. Nevertheless, both clusters are visible through 10x50 binoculars. NGC 1647 is considerably larger.
Light pollution will make seeing any deep-sky object difficult or even impossible and open clusters are no exception but a number of them are bright enough to be seen under city skies.
Noteworthy binocular open clusters that are visible from nightfall into the early morning at this time of year include M34-M38, M41, M44-M48, M50, M52, M67, M93, Melotte 20, Melotte 111, NGC 752, NGC 869 and NGC 884 (the Double Cluster), NGC 1528, NGC 7789, and Stock 2.
There's more on binocular observing in my post at http://cs.astronomy.com/asy/observing/f/69/t/49119.aspx?page=1
Sic itur ad astra!
Chance favors the prepared mind.
A man is a small thing, and the night is very large and full of wonders.