IWC Watch Portugieser Yacht Club Chronograph IW390507. Since 2010, the Portugieser Yacht Club Chronograph has brought a touch of sportiness to the Portugieser family. This robust chronograph with flyback function is powered by the IWC manufactured 89361 calibre movement. It displays the elapsed hours and minutes combined on a subdial at 12 oclock. An additional quarter second scale on the flange allows the precise measurement of shorter time periods, too. The watch is housed in a stainless steel case, water resistant to 6 bar, and features an integrated crown protection. The blue dial with white subdials, the red chronograph seconds hand, and the resilient blue rubber strap create a particularly sporty look, making this timepiece a perfect companion for the summer season.