I suppose it depends on your vantage point.
Rolex didn't add much to the Harwood principle except to make it 360º (and still uni-directional).
Felsa developed the first successful 360º bi-directional winding movement, which I consider as important a step as the Eterna rotor.
My vision is probably obscured by my distaste for the Rolex PR machine and the fact that they had to withdraw their claim regarding invention of the first automatic watch and issue a public apology to John Harwood, although that had to be dragged out of them.
Even today they still claim an "invention", even though they neglect to say anything about the winding method.
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