Representing the sixth and latest special edition to bear the name of the famous underwater explorer, the IWC Aquatimer Chronograph Edition "Expedition Jacques-Yves Cousteau" boasts all the necessary features of a diver’s watch designed for expedition use. The 4mm x 17mm stainless steel case houses automatic mechanical IWC caliber 79320 movement and a mechanical external/internal rotating bezel with the IWC SafeDive system. A sea-blue dial with has coral-red seconds hand -- denoting Cousteau's passion for coral reefs -- while the caseback features an engraved likeness of the famed oceanographer. IWC strap quick-change system rounds out the details. Check out close-up looks below.