The IWC Big Pilot IW5004-33 was introduced in 2012 as a limited edition of 250 pieces created in celebration of the 70th birthday of Muhammad Ali. It features a black dial with bold red accents. The present IW5004-35 is a unique piece of said limited edition; the case is white gold and the case back is engraved with Mr. Ali’s signature. It was to be auctioned off.
