If there's anyone who understands that luxury products take time to create, it's Ramesh Nair, creative director of leather goods maison Moynat. "Time is something elastic and subjective, not a static measurement," he says. "It's my decision to select artisans and train and encourage them to take the time necessary, instead of going the way of assembly-line production that is much more common today," Nair adds. The helmet case Moynat recently...