Watchuwant is now WatchBox! Subscribe for the best luxury watch content. 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. See this 44mm 18K white gold IWC Portuguese Tourbillon Mystere Ref. 5042-07 in high-resolution images on our website, https://www.thewatchbox.com/watches/iwc/ Instagram: https://www.instagram.com/watchbox/ Video and content by Tim Mosso and Pheline Jerome.