Really nice. Limited to only 300 pieces, the Z6 Black Edition features manually wound 45-jewel Swiss-made mechanical movement with hours, minutes and seconds functions (small seconds), as well as an alarm function with a day/night indicator. Hand-finished sapphire caseback, produced from Zalium with a black DLC treatment is whooooooo if you know what I"m talking about. That Harry Winston name means the right kind of something. A release isn’t set until later this coming summer, but stay tuned.