CZAPEK, we, patek enthusiasts, cannot be 100% sure it is a fake, but are all in agreement it's a 99.99% probability of it being a dud. I know it's difficultfor you to believe us, most probably because you paid a sum for it, or had to make certain sacrifices for it as well. However, you DID ask for our opinions, and we are all in agreement.
Good luck bringing it to your local AD, and if possible, ask him to get an extract from the archives... Place a bet with you? i'm tempted.. but, nah, i think it'll just be mean to take advantage of your ignorance.