I picked up this Omega watch a few days ago. It has sweep seconds, sub-seconds at II and a 24-hour dial at IX. The dial lettering is "OMEGA", "SWITZERLAND", "MAKE 1182" The case is about 2 inches (50 mm) diameter. The lady on the back is an enamel plaque. The case is brass (gilt?) I don't have any good books on Omega and so I know nothing about this watch. I can remove the bezel, which reveals nothing, except the inside of the bezel is gilt. But how to I get at the movement? There is no way to take the back off; there is a fine line around it, but nowhere to lift it, and I am pretty sure it doesn't crew off. And I do not want to try prying off the enamel plaque unless I am certain that is the way to go. Does anyone have a similar watch and information on it?