Pre-Owned Roger Dubuis Golden Square Perpetual Calendar Limited Edition (G40WGBLACK) self-winding automatic watch, features a 40mm 18k white gold case surrounding a black dial on a black leather strap with an 18k white gold deployant buckle. Functions include hours, minutes, days, dates, months, moon phase, and perpetual calendar. Limited edition of 28 pieces. This watch does not come with box or papers. This is a Limited Edition piece of 28! We back this watch with a 2-Year WatchBox warranty!