This contemporary-awesome design contains a self-winding motion driven by the movement of the wrist without having for batteries, shown with an exhibition caseback. A matching yellow gold ion-plated stainless-steel bracelet completes the design. Gold Plated: Common gold plating isn't used in modern watches, but is routinely observed on vintage pieces. https://www.watchesworld.com/exploring-the-aesthetics-of-dial-design-and-decoration/