Presented at the SIHH 2016, all three models in the Top Gun line from IWC had undergone a few modifications. First, instead of a soft strap, the watches now feature an embossed black calfskin strap. Optically speaking, the change is virtually unnoticeable, but leather is considerably more robust and harder wearing. Second, the Top Gun logo is now engraved on the reverse side of the case of the Big Pilot’s Watch Top Gun Miramar and the Pilot’s Watch Chronograph Top Gun Miramar.