This modern-neat design contains a self-winding movement driven with the movement of your wrist with no need for batteries, exhibited with an exhibition caseback. A matching yellow gold ion-plated stainless-steel bracelet completes the design. Their 35mm Uncomplicated Reader Day-Date product is a major illustration of what built railroad watches so https://www.watchesworld.com/exploring-the-aesthetics-of-dial-design-and-decoration/