On the heels of Baselworld comes Swiss Watch in Las VegasTiming, as they say, is everything—especially when you’re talking about trade fairs for the timepiece industry. And this year’s show schedule is more complicated—no pun intended—than ever.That’s because Baselworld, the granddaddy of all watch shows, concludes its weeklong run in Switzerland on May 2—much later than most years in order to accommodate the Basel convention center’s $460 million makeover—and Swiss Watch, an appointment-only showing of 28 high-end brands, opens May 31 in Las Vegas.“Logistically, it’s more stressful for the retailers and especially the brands, but even brands with limited distribution are coming to Vegas because that’s where the retailers are,” says Steven Kaiser, president of New York City–based Kaiser Time, which produces Swiss Watch in collaboration with JCK Events.From May