You can’t buy shares in Rolex SA. The purchase probably delivers a better outcome for Rolex than seeing Bucherer fall into the hands of a private equity group or Bernard Arnault’s Louis Vuitton Moet Hennessy. Jean-Philippe Bertschy, an analyst at Vontobel Wealth Management, estimates that Rolex will generate annual sales of over 10 billion Swiss Francs this year; Bucherer will …