The Sky-Dweller is equipped with calibre 9001, one of the most complex movements ever created by Rolex, yet engineered for simplicity of use: a selector wheel on the outside edge ensures the interaction between the rotatable bezel, winding crown and movement to set the functions. Calibre 9001 is equipped with a self-winding module via a Perpetual rotor and offers a power reserve of approximately 72 hours. #Rolex #SkyDweller #Perpetual

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