In Watches, a Purple Craze

Lucien Steinmann, co-chief executive of Positive Coating, said A.L.D., as the process is commonly called, involved applying a transparent coating of oxidized metals onto a surface, atomic layer by atomic layer, in a vacuum chamber. “Due to the thickness of the coating used for decoration on dials, cases and movement parts, the human eye will…

Which Watches Do Jewelry Designers Wear?

When you design jewelry for a living, how do you choose your wristwatch? Does the design take priority? Does your watch match your jewelry aesthetics? We asked six female jewelry designers to share what makes them tick. (Their comments have been edited and condensed.) Carolina Bucci Ms. Bucci is a fourth-generation jeweler from Florence, Italy,…