Carbon Aquaracer in 41 mm black PVD-covered titanium case with carbon bezel; $4,000; TAG Heuer; 973-467-1890; tagheuer.com COMINGS AND GOINGS Jean-Claude Biver has stepped down from his role as CEO of LVMH’s watch division, though he will serve as the group’s nonexecutive chairman, a nonoperational position. Stéphane Bianchi, former CEO of beauty and cosmetics company Yves Rocher, will take over the watch division and directly lead TAG Heuer. In addition, Frédéric Arnault, son of LVMH chairman and CEO Bernard Arnault, has been ­appointed TAG Heuer’s ­strategy and digital director. Michael Hill International has appointed Daniel Bracken as its new CEO. Predecessor Phil Taylor is stepping down because of a health issue. Bracken is currently CEO of Specialty Fashion Group, an Austra