I discovered these pages a while ago and it is a great resource for Orient watches. The first link is to an Orient dedicated website and the second is to a Orient movement database that lists all of the movements used as well as the related specs.

http://watches.zsebehazy.com/orient.htm

http://watches.zsebehazy.com/orient_movements.htm

Here is the link to the official website for Orient - http://orientwatchusa.com/