Request for ID and Repair Info (Please)

I recently received the IWC watch that is in the attached picture, from my 90 year old father. The watch was his father's and would have been acquired in Europe no later than 1938. I am not knowledgable about such watches and do not know how to properly identify this watch, nor where to go to restore it to a good condition. Any helpful information would be very much appreciated as I would like to restore this once beautiful time piece. Thank you for any help. Steve N.

[](s628.photobucket.com/user/OMGWhatIsAvail/media/IWC-Watch_zpsxixce9vp.jpg.html)

Hi Tony - Thank you for your comment. I would dearly love to open the case to find the information you suggested, but can not tell if the rear of the case is threaded, or if there is a hinge (or where the hinge is located). From looking at other IWC vintage watches, I suspect that it has a hinge, but am not certain because from the edge, it sure looks like the rear is threaded with no hinge at all. In any case, i do not want to do any damage at all, so I am reluctant to guess. Even if it has a hinge, I am not sure how tight the fit is so I really want to be careful.

Glad to listen to any comments on how to open the case. Thanks again.

Well,if it hasn't been opened in the past,then as you say,be very careful to whom you entrust to examine the watch,excluding schaffausen of course. If the watch has a great deal of sentimental value,and by accounts so far,it would seem that the watch has some historical value,which is another reason to have the watch restored.I'd be inclined to send it to schaffausen yourself by a registered courier.
Kenneth.

Hi Kenneth - This is excellent advice, thank you.