Ive swallowed a small alarm clock...should I go to the ER or let it p?

This morning while getting ready for work I accidentally swallowed a small chime style alarm clock. I experienced some discomfort while swallowing it, and now my throat is sore, but other than that I just have a bit of a stomach ache. I'm not sure if I should head to the ER (I'm a little embared and would like to avoid this) or let the alarm clock p...