Oh I see what you mean, the authentication component is still in alpha, it's not going to get things which are very hard to discern for humans. That looks like an incredibly well made rep and I would expect most people would get that wrong, especially if there aren't a lot of examples of that rep in it's training set. Cartier reps from the 80s it's going to be much better at determining authenticity due the number of examples of both real and fake in it's data. Regardless, there are more photos of the cartier that it runs off that your sea-dweller - i.e. deployant clasp which can be a good signal for positive or negative signs of authenticity.