American pocket watches were rarely cased at the factory(at least not until the 1920s), and in most cases there really wasn't even any relationship between the watch maker and case maker. So, no, information on the movement won't tell you anything about the case. I'm not aware of any case serial number records which survived, so there's no way I know of to look up a case by SN. Any markings on the inside of the case which you can supply would be very telling. Statements like 'Guaranteed X years' always mean gold filled. 'Warranted US Assay' generally means gold. The gold content is not always marked, although 14K(the highest generally seen for US-made watch cases) will usually be.

The Brooklyn Watch Case company(B.W.C.Co.), also made some cases which are a sort of in-between from gold filled and solid gold. 'Eagle' cases were 8 karat-which is too low to be legally called gold, but none the less were the same composition all the way through.

They also had a grade which was 14K gold on top of 8K gold. Each of these had their own hallmark-like marking. Dishayen Serial Episode 1. Herbie Hancock Blow Up Rapidshare here. So, please supply more information about any markings on the case, and we can tell you more. Hi inside the watch I did find a patent date of Dec 7 1986 in very small print on the edge. There is the wording American Waltham Watch with fancy scrolling beneath the first letter of each of those words. There is the words safety pinion and the serial number I already mentioned 5019470 and 4107 which I believe must be a reference to 404107 which is on the inside of each of the three covers.nothing else inside.on the inside of the back cover is the wording C.W.

C.Co Trade(moon Star)Mark. On the face is the wording R.W.W Co. Thanks for your help!!!

Find out info, specs, and value for your antique pocket watch. We offer serial number lookups for manufacturers such as Elgin, Illinois, Waltham, and Hamilton. Pocket Watch Serial Number Lookup - Hamilton, South Bend, Illinois, Rockford, Waltham & Elgin Pocket Watches Serial Number. Rockford Ill.