The IWC Da Vinci Automatic IW4523 made its debut in 2007, as part of a complete overhaul of the Da Vinci line. This version of the Da Vinci boasts a unique tonneau-shaped case, measuring 45.20 x 35.60 mm in the IW4523-08 model, and houses the self-winding caliber 30130. The dial is a rich shade of brown.