Even the complication-obsessed Swiss occasionally invent something so simple it is hard to believe nobody thought of it before. Chopard (chopard
.com) has devised an ingenious solution for tackling the tedious hand-winding process. Each of its LUC Quattro Tourbillon and Régulateur models, which have four spring barrels with a power reserve of more than 200 hours, now includes a platinum watch crank that fits snugly over the crown, allowing you to charge the mainsprings as easily as winding film in an old-fashioned camera. . . .