Pretty sure after being advised that this is an Accutron Day/Date 'Q'
Has a very dark blue dial, almost green when viewed directly from above.
Original watchband was a coriam blue strap. Looking for a suitable leather version.
Watch was very clean on the inside, fitted a battery and after a few days it seems to be keeping perfect time.
This was a thrift shop find. Would be great if they were all in this condition.