The Classic, Improved and Elevated. The IWC Pilot Mark series has been a benchmark timepiece for versatility, build quality, and timeless design. The IWC IW328304 Mark XX keeps everything that’s great about the earlier Mark series timepieces, and adds versatility, performance, and practicality. First, is the addition of the Calibre 3211, which takes the power reserve up to an impressive 120 hours while keeping that high 28800 beat rate and the smooth sweep that comes with it. One of the weak points of this series has always been the water resistance. Not really an issue if you’re a pilot, but the Mark XX steps that up to 100m, meaning that you don’t have to put this in your shoe before you go swimming. What blows me away though, is the bracelet. Even if you’re not a “bracelet guy,” this five link bracelet is a remarkable feat of engineering and comfort. And with IWC’s quick swap system, you can go from bracelet to the included full-grain Horween Chromexcel strap in just seconds. Offered at $4995 including fully insured overnight shipping in CONUS. This example comes with the watch, bracelet, extra strap, Outer Box, Inner Leather Box, Papers, Branded Microfiber, strap tools, and warranty card, extended to 2031. Very good condition with light marks as shown, wears clean.