1) The crown looks bigger, like the one on an Optimum. The one on the Optimum is rounder and less sharp compared to the one on a 38mm Resonance. So it translates to better comfort in terms of sharp edges and torque application on the crown.
2) It should require less force to wind, since it has one mainspring. But I don't know the specs of the new mainspring vs the previous one with two mainsprings. Do you find it requires less force?
Of course the relocation helps too.
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