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 o...
... I wish you´ll enjoy it so much, and that it is a prelude to many other "oldies"! Cordial regards, Abel. PS: Here is mine, saying hello to yours! ...