IWC Men&#39;s IW504207 Portuguese Tourbillon Myst?re Watch 44 jewels Automatic movement Limited edition of 250 watches! 18k white gold case with, power reserve displayat the 3 o'clock, small seconds hand at 9 oclock and skeletonize tourbillon at the 12 o'clock Breguet spring, rotor with 18 ct. Yellow gold medallion, convex sapphire glass, sapphire glass back; 7 day power reserve Water resistant to 99 feet (30 M): withstands rain and splashes of water, but not showering or submersion