The standard Rolex Yacht Prestige is a luxury-oriented sports watch that displays the time and date. The Yacht Prestige II joined the Rolex collection in 2007, offering unprecedented functionality with the regatta timer. The Yacht Prestige II is powered by Caliber 4161, one of the most complex movements Rolex has ever built, with a patented mechanical memory and instantaneous synchronization of the regatta timer. Also, the Yacht Prestige bezel is different because it controls part of the movement inside the case, rather than simply acting as an external mechanism to help track elapsed time. The Rolex Yacht Prestige II also has a completely different aesthetic, featuring a larger 44m case with chronograph pushers on either side of the winding crown.