If the OM-1 is really in good working order, that is a good price. It will likely need new foam around the back cover. Check the hinge foam for stickiness. If it is gooey, this and the foam in the slots may not keep light out as well as it used to. The 1.55v alkaline batteries (625A, 625U) will throw the meter off 2-3 stops (causing underexposure, dark slides, thin negatives).
Originally Posted by Andy K