Condition of this one aside, I am not convinced that the flat bottomed sweep isn't ever correct on a 321, if that's what you are saying.
There is no question that early (transitional) 821 have the applied Omega logo dial.
Seems logical to me that "transition" can work both directions and therefore late production 321 examples could have easily have the flat sweep hand when assembled, if the triangle ones were depleted or out of stock.
Click to expand...