Rolesor, The Mixture of gold and Oystersteel on a Rolex watch, continues to be a signature feature in the model since 1933, once the identify was registered. It's a gathering of two metals: a person, noble and valuable, beautiful for its lustre and balance; the other, hugely immune to corrosion, https://www.watchesworld.com/11-of-the-best-womens-watches/