Hi everyone I want to buy this vintage model of a mechanic Rene Marchal but can't find out nothing about that specific model The seller said that is original and sent me 2 photos Watching the calibre seems to be original because the blue screws and the position of the jewels, but using the reference 3147A there's nothing Even checked on the old website of the maison but I can't find this model Someone that help me?? Check out the photos I've attached Thanks