A few days ago I was at my Grand Mothers house. While going through old things we stumbled upon this old pocket watch. There is no inscriptions on the pocket watch movement, what is visible are the hallmarks on the solid 9 rose gold case. To put a time frame on it, the pocket watch belongs to my Grandmothers' Grandmothers Uncle. When I was taking it apart to clean, on the reverse of the dial it is inscribed Gs Dubois Chaux de Fonds. Now I know Chaux de Fond is a very famous watch town in Switzerland but I can't find any info on Gs Dubois. Did they make only the dial, or did they make both the movement and dial? What is really fascinating is that the pocket watch is surprisingly slim, close to half the standard pocket watch in thickness. I can only assume that is a 15 jewel movement. The case was imported under the mark GS which is George Stockwell but that hasn't led me anywhere promising. Any help from you chaps will be greatly appreciated. Thanks in advance.