Like All Rolex watches, the Oyster Perpetual Datejust 31 is roofed because of the Superlative Chronometer certification redefined by Rolex in 2015. This designation testifies that each watch leaving the brand’s workshops has successfully been through a series of exams performed by Rolex in its personal laboratories In accordance with https://www.watchesworld.com/11-of-the-best-womens-watches/