On the inside of the calliper one half say 20.5248 and the other half says 20.5249.00 - There's also a stamp on the outside as well but it's hard to make out where they've been powder coated.
I see you're point but if they were an OE brake I wouldn't expect them to say Movit on them... And that's actually embossed on the calliper, not just a de-cal