Like All Rolex watches, the Oyster Perpetual Datejust 31 is covered by the Superlative Chronometer certification redefined by Rolex in 2015. This designation testifies that every watch leaving the manufacturer’s workshops has productively been through a number of exams carried out by Rolex in its have laboratories In accordance with https://www.watchesworld.com/11-of-the-best-womens-watches/