I think it is Diamond Excellency "A"
Yes, I agree, it's a Diamond Excellency.
Agreed, Would be good to get a better picture of the dial if possible.
Agree with Diamond Excellency, but the movement appears to have an M7 datecode (very hard to see, doesn't look to be a 6), which could make this a 1967. Also would be nice to see the backside markings.