Harry Winston adds Project Z15 limited edition to Ocean collection

It combines the Zalium case with a sophisticated movement that offers a regulator-style time display and distinct aesthetic elements Harry Winston launched its inventively named Project Z series of high-luxury timepieces in 2004 as a showcase for its exclusive, in-house alloy Zalium, a lightweight, zirconium-based material with exceptional corrosion resistance. The new Project Z15 watch,