first female chief scientist for the National Oceanic and Atmospheric Administration, Sylvia Earle wears a full gold, Lady-Datejust 26mm.Peruvian operatic tenor - Juan Diego Flórez has a 36mm, two-tone Rolex Datejust reference 116233 - one of the few Datejust models that utilized the Crownclasp; usually on President and PearlMaster models only.