I bought this watch some years ago, and it was my understanding at the time that the movement met chronometer specs. It has certainly performed within chronometer specs for me, right out of the box. That being said, I honestly cannot recall whether the watch came with an individual COSC certificate or not. In fact, I think it is more likely that the movement was adjusted to chronometer specs, but not individually certified. The box is stowed away, but I'll see if I can find anything one way or the other on that point. Apologies for any misunderstanding -- certainly unintentional!