The Rolex Yacht-Master II is a chronograph, however a very special type of chronograph, also called a Regatta watch or a Skipper watch. Indeed, don’t expect it to measure intervals of time, like most chronographs. For that, you should take a look at the iconic Daytona, a watch made to measure speeds (or anything else from one instant of time to another). The YM II is different. It features a programmable countdown with a mechanical memory that can be synchronized on the fly. This watch, as we said in the intro, is very niche, answering to the specific needs for precise timing during the crucial starting sequence of a regatta.