The bezel would be a MK2. MK the numbers are close to the inner edge. MK3 the font is thinner.
I think the Bezel matches the dial. The dial has the crown with the little droop and the yellow patina serial range +/- 3mil - 5 mil. Could wider on both side of the range just a small guide line for you.
Nice look with the strap.
Wear it in good health.
Bill