Rolex · Automatic

4161

The Yacht-Master II is equipped with calibre 4161, a self-winding mechanical regatta chronograph movement entirely developed and manufactured by Rolex. The result of over 35,000 hours of development, the Yacht-Master II introduces a new regatta countdown with a unique, patented mechanical memory created by Rolex. A number of the 360 components in the 4161 movement are so tiny or complex that they can only be made by new, cutting-edge technology. Just like the Sky-Dweller, the Yacht-Master 2 features a 'Ring Command' bezel that operates in conjunction with the movement, acting as the key to the programmable countdown.