The IWC Aquatimer Chronograph 3767 made a comeback in 2009 after the external rotating bezel disappeared in 2004 with the reference 3536. Its stainless steel case measures 44mm in diameter and 15mm in height. The only exception was the rubber-coated case of the Darwin Foundation model. However, this version was discontinued in 2014 when the next generation of Aquatimers was introduced. The collection welcomed the addition of reference IW3767-11 in 2011, which did away with contrasting subdials and made some minor tweaks to the bezel.