The IWC Big Pilot Chronograph Top Gun, reference IW389101, is a 44.5mm black ceramic watch with a black dial, white numerals, and luminescent hands. Originally sold in 2021, it comes as a full set with its original box and papers. Powered by the IWC 69380 calibre, it features a chronograph, date display, and a 46-hour power reserve. The black textile strap and 60-meter water resistance make it both stylish and functional, embodying IWC's aviation heritage and precision engineering.