IWC Portofino Chronograph Watch, 42mm Blue Dial, IW391035For the first time, the Portofino Chronograph is offered in an 18 carat 5N gold case with a blue dial. The Portofino family successfully combines the ease of the Mediterranean lifestyle with understated glamour and timeless elegance. Since 1988, chronographs have had their firm place in this family. The Portofino Chronograph handles single stop times and aggregate timing up to 12 hours, bringing a sporty touch to the collection. Now, for the first