Pre-Owned IWC Portuguese Tourbillon Mystere Limited Edition (IW504207) self-winding automatic watch, features a 44.2mm 18k white gold case surrounding a sunburst grey dial on a black alligator strap with an 18k white gold deployant buckle. Functions include hours, minutes, small-seconds, tourbillon and power reserve indicator. This watch comes with the warranty card. This watch is a Limited Edition piece of 250! We back this watch with a 15-month warranty!