Antonio, thanks for your response and the link. It looks good to me too, but the engraving made me worry. You know, its the collector's worst nightmare, to buy a fake watch right? So do you think there different kinds of 1520 calibers? and also, do you know what's the name of the piece where the engravings are (is it the bridge)? Thanks in advance for you kind attention and interest, the information you gave me has been very helpful. At least I know there is a similar movement out there!