These movements consist of the blue Parachrom hairspring, made by Rolex in a very paramagnetic alloy. As well as resisting robust magnetic fields, this hairspring offers excellent stability during the face of temperature variations together with superior resistance to shocks. It is equipped that has a Rolex overcoil, guaranteeing the https://boydenver52.wixsite.com/impalaspareparts/post/luxury-watches-online-for-men