Hi, I'm brand new to the forum. I would be interested in buying a White/Golden Shadow UG but it is quite hard to find informations on those models. Some models have a chrome case, others have a matte aluminium finish; some hands are painted, others are chromed and there is a huge diversity on the dial's lettering. Are there some reference guide or original ads that could help? There is also a huge diversity of case shapes, especially for the Golden Shadow. It is also said that the watch was inspired by the Patek Ellipse while the UG is older... (1965 vs 1968) I also read that the Patek cal.240 was basically a copy from cal.66 and was made by the same engineer (Gérard Berret) but I didn't find much more info : (in french) https://forumamontres.forumactif.com/t211546-pp240-ug66-l-etranger-ressemblance Thanks in advance for help.