That's correct. The direction of the crown is dependent on the movement used. Since BP doesn't use the Rollie clone, it doesn't wind the same direction.BP dial’s the marker 3 shape is more correct than ARF
but the direction of the crown is opposite (bp=counter clockwise , gen = clock-wise , arf clone = clockwise) isn’t it?
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Personally, I feel if someone is gonna unscrew my crown and start turning it, I would be very comfortable with sharing with that person, my hobby in reps